WO2021002159A1 - 高周波モジュール及び通信装置 - Google Patents
高周波モジュール及び通信装置 Download PDFInfo
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- WO2021002159A1 WO2021002159A1 PCT/JP2020/022675 JP2020022675W WO2021002159A1 WO 2021002159 A1 WO2021002159 A1 WO 2021002159A1 JP 2020022675 W JP2020022675 W JP 2020022675W WO 2021002159 A1 WO2021002159 A1 WO 2021002159A1
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- antenna switch
- filter
- antenna
- terminal
- switch
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/25—Constructional features of resonators using surface acoustic waves
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
- H03H9/72—Networks using surface acoustic waves
- H03H9/725—Duplexers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/0057—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/294—Indexing scheme relating to amplifiers the amplifier being a low noise amplifier [LNA]
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
Definitions
- the present invention generally relates to a high frequency module and a communication device, and more particularly to a high frequency module and a communication device that communicates a high frequency signal.
- the high frequency module of Patent Document 1 includes a switch IC connected to an antenna terminal, a plurality of SAW duplexers, and a plurality of SAW filters.
- the switch IC is connected to each SAW duplexer and each SAW filter.
- the switch IC has a common terminal connected to the antenna connection terminal and a plurality of selected terminals. Each of the plurality of selected terminals is connected to the corresponding filter circuit of each SAW duplexer and each SAW filter.
- the present invention has been made in view of the above problems, and provides a high-frequency module and a communication device capable of suppressing a decrease in filter characteristics while suppressing a possibility of signal loss in wiring from an antenna terminal to a switch. The purpose.
- the high frequency module includes a mounting board, an antenna terminal, a first antenna switch, a second antenna switch, and a first filter and a second filter.
- the first antenna switch includes a connection terminal connected to the antenna terminal and a selection terminal connected to the connection terminal.
- the second antenna switch is connected to the selection terminal.
- the first filter and the second filter are connected to the second antenna switch.
- the second antenna switch includes a common terminal and a first selection terminal and a second selection terminal connected to the common terminal.
- the first filter is connected to the first selection terminal of the second antenna switch.
- the second filter is connected to the second selection terminal of the second antenna switch.
- the second antenna switch can simultaneously execute the connection between the common terminal of the second antenna switch and the first selection terminal, and the connection between the common terminal of the second antenna switch and the second selection terminal. It is composed.
- the distance between the antenna terminal and the first antenna switch is shorter than the distance between the antenna terminal and the second antenna switch, and the distance between the first antenna switch and the first filter
- the distance between the second antenna switch and the first filter is longer than the distance between the second antenna switch and the first filter.
- the communication device includes the high frequency module and a signal processing circuit for signal processing.
- the present invention it is possible to suppress the possibility of signal loss in the wiring from the antenna terminal to the switch, and also suppress the deterioration of the filter characteristics.
- FIG. 1 is a schematic circuit diagram illustrating a high frequency module according to the first embodiment.
- FIG. 2A is a schematic plan view illustrating the configuration of the high frequency module of the same.
- FIG. 2B is a cross-sectional view taken along the line X1-X1 of FIG. 2A.
- FIG. 3A is a schematic plan view illustrating the configuration of the high frequency module according to the second modification of the first embodiment.
- FIG. 3B is a cross-sectional view taken along the line X2-X2 of FIG. 3A.
- FIG. 4 is a cross-sectional view of the high frequency module according to the second modification of the first embodiment.
- FIG. 5 is a schematic circuit diagram for explaining the high frequency module according to the second embodiment.
- FIG. 6 is a schematic plan view illustrating the configuration of the high frequency module of the above.
- FIG. 7 is a cross-sectional view taken along the line X3-X3 of FIG.
- FIGS. 1 to 7 referred to in the following embodiments and the like are schematic views, and the ratio of the size and the thickness of each component in the figure does not necessarily reflect the actual dimensional ratio. Not necessarily.
- the high frequency module 1 is used, for example, in a communication device 500 compatible with multimode / multiband.
- the communication device 500 is, for example, a mobile phone (for example, a smartphone), but is not limited to this, and may be, for example, a wearable terminal (for example, a smart watch) or the like.
- the high frequency module 1 is provided in, for example, a multi-band compatible communication device 500 conforming to a communication standard such as LTE (Long Term Evolution).
- the high-frequency module 1 receives a signal via an antenna 4 provided in the communication device 500, performs amplification processing or the like on the received signal, and outputs the signal to a signal processing circuit 3 that processes the high-frequency signal.
- the communication device 500 includes a high-frequency module 1, an antenna 4, and a signal processing circuit 3, as shown in FIG.
- the high-frequency module 1 of the present embodiment includes a mounting board 2, a first antenna switch 10, a second antenna switch 20, a filter group 30, and an amplification unit 40. , Equipped with.
- the switch IC (Integrated Circuit) 100 which is a semiconductor element, is configured by integrating the second antenna switch 20 and the amplification unit 40 into a single chip.
- the mounting board 2 is a double-sided mounting board, and has a first main surface 2a and a second main surface 2b facing each other in the first direction D1 which is the thickness direction of the mounting board 2.
- Each component constituting the high frequency module 1 is provided on the first main surface 2a and the second main surface 2b.
- the first main surface 2a is provided with filters 301 to 308 included in the filter group 30.
- At least one of the switch IC 100 and the first antenna switch 10 is provided on the second main surface 2b.
- at least one of the second antenna switch 20 and the first antenna switch 10 is provided on the second main surface 2b.
- both the switch IC 100 and the first antenna switch 10 are provided on the second main surface 2b.
- the first antenna switch 10 is connected to the antenna 4. Specifically, the input terminal 101 of the first antenna switch 10 is connected to the antenna terminal T1 connected to the antenna 4. The output terminal 102 of the first antenna switch 10 is connected to the input terminal of the second antenna switch 20. The output terminal 103 of the first antenna switch 10 is connected to the input terminal of the filter 308 included in the filter group 30. The first antenna switch 10 selects one of the output terminals 102 and 103 as the connection destination of the input terminal 101 according to the received signal under the control of the signal processing circuit 3. Depending on the connection destination of the input terminal 101, it is further connected to at least one of the matching circuits 110 and 111.
- the first antenna switch 10 is controlled by, for example, the signal processing circuit 3.
- the first antenna switch 10 switches the connection state of the first antenna switch 10 according to the control signal from the RF signal processing circuit 5 of the signal processing circuit 3.
- the second antenna switch 20 is included in the switch IC 100 as described above.
- the second antenna switch 20 is connected to the first antenna switch 10.
- the input terminal 201 of the second antenna switch 20 is connected to the output terminal 102 of the first antenna switch 10.
- Each of the plurality of (seven in the illustrated example) output terminals 202 to 208 of the second antenna switch 20 is connected one-to-one to the plurality of filters 301 to 307 (see FIG. 1) included in the filter group 30.
- the second antenna switch 20 is controlled by, for example, the signal processing circuit 3.
- the second antenna switch 20 switches the connection state of the second antenna switch 20 according to the control signal from the RF signal processing circuit 5 of the signal processing circuit 3.
- the second antenna switch 20 is configured to be able to be simultaneously connected to a plurality of filters included in the filter group 30. That is, the input terminal 201 of the second antenna switch 20 can be simultaneously connected to two or more output terminals of the output terminals 202 to 208. As a result, the high frequency module 1 can be applied to carrier aggregation in which simultaneous communication is performed in a plurality of frequency bands, that is, signals in different communication bands are simultaneously communicated.
- the second antenna switch 20 may be connected to one filter included in the filter group 30.
- the filter group 30 has a plurality of filters 301 to 308.
- the plurality of filters 301 to 308 are, for example, elastic wave filters, and each of the plurality of series arm resonators and the plurality of parallel arm resonators is composed of elastic wave resonators.
- the surface acoustic wave filter is, for example, a SAW (Surface Acoustic Wave) filter that utilizes surface acoustic waves.
- the plurality of filters 301 to 308 are not limited to SAW filters.
- the plurality of filters may be, for example, BAW (Bulk Acoustic Wave) filters other than SAW.
- the plurality of filters 301 to 308 may be configured by FBAR (Film Bulk Acoustic Resonator) or the like. Further, the filters 301 to 308 may be configured by an LC resonance circuit or the like.
- the filter 302 is, for example, a triplexer in which the input terminals of the three filters are made into common terminals. Further, the filters 301, 306, and 308 are, for example, duplexers in which the input terminals of the two filters are made into common terminals.
- Each of the input terminals of the filters 301 to 307 is connected one-to-one to the plurality of output terminals 202 to 208 of the second antenna switch 20.
- the filter 308 is connected to the output terminal 103 of the first antenna switch 10.
- the amplification unit 40 has a plurality of low noise amplifiers 401 to 413. Each low noise amplifier 401 to 413 amplifies the signal that has passed through the corresponding filter. Each input terminal of the low noise amplifiers 401 to 413 is connected to the output terminal of the corresponding filter. Each output terminal of the low noise amplifiers 401 to 413 is connected to the signal processing circuit 3.
- the signal processing circuit 3 includes, for example, an RF signal processing circuit 5 and a baseband signal processing circuit 6.
- the RF signal processing circuit 5 is, for example, an RFIC (Radio Frequency Integrated Circuit), which performs signal processing on a high frequency signal.
- the baseband signal processing circuit 6 is, for example, a BBIC (Baseband Integrated Circuit), and performs predetermined signal processing.
- the received signal processed by the baseband signal processing circuit 6 is used, for example, for image display as an image signal or for a telephone call as an audio signal.
- the high frequency module 1 transmits a high frequency signal (here, a received signal) between the antenna 4 and the RF signal processing circuit 5 of the signal processing circuit 3.
- the baseband signal processing circuit 6 is not an essential component.
- the arrangement of the first antenna switch 10, the second antenna switch 20, and a plurality of filters in the high frequency module 1 will be described.
- the filters 303, 304, 305, 307 shown in FIG. 1 are used as the plurality of filters.
- FIG. 2A shows a plan view of the high frequency module 1 as viewed from the first direction D1
- FIG. 2B shows a cross-sectional view of the high frequency module 1.
- the high frequency module 1 includes a plurality of external connection electrodes 50.
- the plurality of external connection electrodes 50 connect the high frequency module 1 to the mother substrate on which the signal processing circuit 3 and the like are mounted.
- the plurality of external connection electrodes 50 are columnar (for example, columnar) electrodes provided on the second main surface 2b of the mounting substrate 2.
- the material of the plurality of external connection electrodes 50 is, for example, a metal (for example, copper, a copper alloy, etc.).
- the high frequency module 1 receives the signal received by the antenna 4 via the external connection electrode 50 and outputs it to the RF signal processing circuit 5 of the signal processing circuit 3 via another external connection electrode 50.
- the external connection electrode 51 of the plurality of external connection electrodes 50 corresponds to the antenna terminal T1 described above.
- the external connection electrode 51 as the antenna terminal T1 is connected to the input terminal 101 of the first antenna switch 10 via the conductor 81 (see FIGS. 2A and 2B).
- the high frequency module 1 further includes a first resin layer 61 on the first main surface 2a of the mounting substrate 2 that covers electronic components such as the filter group 30 mounted on the first main surface 2a.
- the high-frequency module 1 further includes a second resin layer 62 on the second main surface 2b of the mounting board 2 that covers electronic components such as the switch IC100 and the first antenna switch 10 mounted on the second main surface 2b.
- the material of the second resin layer 62 may be the same material as the material of the first resin layer 61, or may be a different material. In FIG. 2A, the first resin layer 61 is omitted.
- the switch IC 100 and the first antenna switch 10 are arranged on the second main surface 2b of the mounting board 2 (see FIG. 2B).
- the second antenna switch 20 and the first antenna switch 10 included in the switch IC 100 are arranged along the second direction D2 (see FIGS. 2A and 2B).
- the second antenna switch 20 is connected to the first antenna switch 10 via the conductor 80.
- the input terminal 201 of the second antenna switch 20 is connected to the output terminal 102 of the first antenna switch 10 via the conductor 80 (see FIG. 2A).
- the distance L1 between the external connection electrode 51 as the antenna terminal T1 and the first antenna switch 10 is shorter than the distance L2 between the antenna terminal T1 and the second antenna switch 20.
- the distance L1 between the external connection electrode 51 as the antenna terminal T1 and the first antenna switch 10 is the distance from the antenna terminal T1 to the input terminal 101 of the first antenna switch 10 when the mounting board 2 is viewed in a plan view.
- the distance L2 between the antenna terminal T1 and the second antenna switch 20 is the distance from the antenna terminal T1 to the input terminal 201 of the second antenna switch 20 when the mounting board 2 is viewed in a plan view.
- the filters 303, 304, 305, 307 are arranged on the first main surface 2a of the mounting substrate 2 (see FIG. 2B).
- the filter 303 and the filter 307 are simultaneously connected to the second antenna switch 20, and the filter 304 and the filter 305 are simultaneously connected to the second antenna switch 20.
- the two filters 303 and the filter 307 that are simultaneously connected are arranged along the second direction D2 (see FIG. 2A).
- the two filters 304 and the filter 305 that are simultaneously connected are arranged along the second direction D2 (see FIG. 2A).
- the filter 307 is connected to the second antenna switch 20 via the via 71 provided on the mounting board 2 (see FIG. 2B).
- the filter 303 is connected to the second antenna switch 20 via a via 72 provided on the mounting board 2 (see FIG. 2B).
- the filter 304 is connected to the second antenna switch 20 via a via (not shown) provided on the mounting board 2.
- the filter 305 is connected to the second antenna switch 20 via a via (not shown) provided on the mounting board 2.
- the distance L3 between the first antenna switch 10 and the filter 303 is longer than the distance L4 between the second antenna switch 20 and the filter 303.
- the distance L3 between the first antenna switch 10 and the filter 303 is the distance from the output terminal 102 of the first antenna switch 10 to the input terminal 353 of the filter 303 when the mounting board 2 is viewed in a plan view.
- the distance L4 between the second antenna switch 20 and the filter 303 is the distance from the output terminal 204 of the second antenna switch 20 to the input terminal 353 of the filter 303 when the mounting board 2 is viewed in a plan view.
- the distance from the output terminal 102 of the first antenna switch 10 to the input terminal 357 of the filter 307 is longer than the distance from the output terminal 208 of the second antenna switch 20 to the input terminal 357 of the filter 307.
- the distance from the output terminal 102 of the first antenna switch 10 to the input terminal 354 of the filter 304 is longer than the distance from the output terminal 205 of the second antenna switch 20 to the input terminal 354 of the filter 304.
- the distance from the output terminal 102 of the first antenna switch 10 to the input terminal 355 of the filter 305 is longer than the distance from the output terminal 206 of the second antenna switch 20 to the input terminal 355 of the filter 305.
- At least one of the filters 303 and 307 is at least a part of the second antenna switch 20 when the mounting board 2 is viewed from the first direction D1, that is, when the mounting board 2 is viewed in a plan view. It overlaps with. In the present embodiment, both the filter 303 and the filter 307 overlap with at least a part of the second antenna switch 20 when the mounting board 2 is viewed in a plan view.
- At least one of the filter 304 and the filter 305 overlaps with at least a part of the second antenna switch 20 when the mounting board 2 is viewed in a plan view. In the present embodiment, both the filter 304 and the filter 305 overlap with at least a part of the second antenna switch 20 when the mounting board 2 is viewed in a plan view.
- At least one of the filters 303 and 307 overlaps with at least a part of the corresponding low noise amplifier when the mounting board 2 is viewed from the first direction D1.
- the filter 303 overlaps with at least a part of the corresponding low noise amplifier 406, and the filter 307 overlaps with at least a part of the corresponding low noise amplifier 411. overlapping.
- At least one of the filters 304 and 305 overlaps with at least a part of the corresponding low noise amplifier when the mounting board 2 is viewed from the first direction D1.
- the filter 304 overlaps at least a part of the corresponding low noise amplifier 407
- the filter 305 overlaps at least a part of the corresponding low noise amplifier 408. overlapping.
- the high frequency module 1 of the receiving system that receives a signal from the antenna 4 and outputs the received signal to the RF signal processing circuit 5 is illustrated, but the high frequency module according to the present invention is the RF signal processing circuit 5. It can also be applied to a high-frequency module of a transmission system that inputs a high-frequency transmission signal output from and outputs it to an antenna or the like.
- the amplification unit 40 includes, for example, a power amplifier that amplifies the transmission signal, instead of the low noise amplifiers 401 to 413.
- the transmission signal flows in the order of the amplification unit 40, the filter group 30, the second antenna switch 20 and the first antenna switch 10, or the order of the amplification unit 40, the filter group 30 and the first antenna switch 10.
- the high frequency module 1 includes the mounting board 2, the antenna terminal T1, the first antenna switch 10, the second antenna switch 20, and the first filter (for example, It includes a filter 303) and a second filter (for example, filter 307).
- the first antenna switch 10 includes a connection terminal (for example, an input terminal 101) connected to the antenna terminal T1 and a selection terminal (for example, an output terminal 102) connected to the connection terminal.
- the second antenna switch 20 is connected to the selection terminal (output terminal 102).
- the first filter and the second filter are connected to the second antenna switch 20.
- the second antenna switch 20 includes a common terminal (input terminal 201), a first selection terminal (for example, output terminal 204) and a second selection terminal (for example, output terminal 208) connected to the common terminal.
- the first filter is connected to the first selection terminal
- the second filter is connected to the second selection terminal of the second antenna switch.
- the second antenna switch 20 is configured to be able to simultaneously execute the connection between the common terminal (input terminal 201) and the first selection terminal and the connection between the common terminal and the second selection terminal.
- the distance L1 between the antenna terminal T1 and the first antenna switch 10 is shorter than the distance L2 between the antenna terminal T1 and the second antenna switch 20.
- the distance L3 between the first antenna switch 10 and the first filter is longer than the distance L4 between the second antenna switch 20 and the first filter.
- the high-frequency module 1 of the first embodiment can suppress the possibility of signal loss in the wiring from the antenna terminal T1 to the switch (first antenna switch 10), and also suppress the deterioration of the filter characteristics.
- At least one of the filters 303 and 307 overlaps with at least a part of the corresponding low noise amplifier when the mounting board 2 is viewed from the first direction D1.
- the path length between the filter 303 and the low noise amplifier 406 can be shortened.
- the second antenna switch 20 and the amplification unit 40 have a configuration included in the switch IC 100, that is, the second antenna switch 20 and the amplification unit 40 are integrated into one chip, but the configuration is limited to this configuration. Not done.
- the second antenna switch 20 and the amplification unit 40 are integrated into one chip.
- the second antenna switch 20 and the amplification unit 40 may be individually arranged on the second main surface 2b.
- the second antenna switch 20 may be provided on the first main surface 2a.
- the high frequency module 1A in this case will be described with reference to FIGS. 3A and 3B.
- the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted as appropriate.
- FIG. 3A shows a plan view of the high frequency module 1A as viewed from the first direction D1
- FIG. 3B shows a cross-sectional view of the high frequency module 1A.
- the first resin layer 61 is omitted.
- the second antenna switch 20 is arranged on the first main surface 2a of the mounting board 2. That is, the second antenna switch 20 is covered with the first resin layer 61.
- the second antenna switch 20 and the first antenna switch 10 are arranged along the second direction D2 (see FIGS. 3A and 3B).
- the second antenna switch 20 is connected to the first antenna switch 10 via a via 75 provided on the mounting board 2 and a conductor 85 provided on the first main surface 2a.
- the input terminal 201 of the second antenna switch 20 is connected to the output terminal 102 of the first antenna switch 10 via the via 75 and the conductor 85 (see FIGS. 3A and 3B).
- the distance L11 between the external connection electrode 51 as the antenna terminal T1 and the first antenna switch 10 is larger than the distance L12 between the antenna terminal T1 and the second antenna switch 20. Is also short.
- the distance L11 between the external connection electrode 51 as the antenna terminal T1 and the first antenna switch 10 is the distance from the antenna terminal T1 to the input terminal 101 of the first antenna switch 10 when the mounting board 2 is viewed in a plan view.
- the distance L12 between the antenna terminal T1 and the second antenna switch 20 is the distance between the antenna terminal T1 and the input terminal 201 of the second antenna switch 20 when the mounting board 2 is viewed in a plan view.
- the filters 303, 304, 305, 307 are arranged on the first main surface 2a of the mounting substrate 2 as described above (see FIG. 3B).
- the filter 303 and the filter 307 are simultaneously connected to the second antenna switch 20, and the filter 304 and the filter 305 are simultaneously connected to the second antenna switch 20, as in the embodiment.
- the filter 303 is connected to the second antenna switch 20 via a conductor 91 provided on the first main surface 2a (see FIG. 3A).
- the filter 307 is connected to the second antenna switch 20 via a conductor 92 provided on the first main surface 2a (see FIG. 3A).
- the filter 304 is connected to the second antenna switch 20 via a conductor 93 provided on the first main surface 2a (see FIG. 3A).
- the filter 305 is connected to the second antenna switch 20 via a conductor 94 provided on the first main surface 2a (see FIG. 3A).
- the distance L13 between the first antenna switch 10 and the filter 303 is longer than the distance L14 between the second antenna switch 20 and the filter 303.
- the distance L13 between the first antenna switch 10 and the filter 303 is the distance from the output terminal 102 of the first antenna switch 10 to the input terminal 353 of the filter 303 when the mounting board 2 is viewed in a plan view.
- the distance L14 between the second antenna switch 20 and the filter 303 is the distance from the output terminal 204 of the second antenna switch 20 to the input terminal 353 of the filter 303 when the mounting board 2 is viewed in a plan view.
- the distance from the output terminal 102 of the first antenna switch 10 to the input terminal 357 of the filter 307 is longer than the distance from the output terminal 208 of the second antenna switch 20 to the input terminal 357 of the filter 307.
- the distance from the output terminal 102 of the first antenna switch 10 to the input terminal 354 of the filter 304 is longer than the distance from the output terminal 205 of the second antenna switch 20 to the input terminal 354 of the filter 304.
- the distance from the output terminal 102 of the first antenna switch 10 to the input terminal 355 of the filter 305 is longer than the distance from the output terminal 206 of the second antenna switch 20 to the input terminal 355 of the filter 305.
- At least one of the filters 303 and the filter 307 is the first when the mounting board 2 is viewed from the first direction D1, that is, when the mounting board 2 is viewed in a plan view. 2 It overlaps with at least a part of the antenna switch 20. At least one of the filter 304 and the filter 305 overlaps with at least a part of the second antenna switch 20 when the mounting board 2 is viewed in a plan view.
- the distance L14 between the second antenna switch 20 and the filter 303 can be made shorter than the distance L13 between the first antenna switch 10 and the filter 303.
- the distance between the second antenna switch 20 and the filter 307 can be made shorter than the distance between the first antenna switch 10 and the filter 307.
- the distance between the second antenna switch 20 and the filter 304 can be made shorter than the distance between the first antenna switch 10 and the filter 304.
- the distance between the second antenna switch 20 and the filter 305 can be made shorter than the distance between the first antenna switch 10 and the filter 305.
- the length of the conductor 92 connecting the filter 307 and the second antenna switch 20, that is, the wiring length can be shortened.
- the length of the conductor 91 connecting the filter 303 and the second antenna switch 20 the length of the conductor 93 connecting the filter 304 and the second antenna switch 20, and connecting the filter 305 and the second antenna switch 20.
- the length of each of the conductors 94 can be shortened, that is, the length of each wiring can be shortened.
- At least one of the filters 303 and 307 overlaps with at least a part of the corresponding low noise amplifier when the mounting board 2 is viewed from the first direction D1.
- the filter 303 overlaps with at least a part of the corresponding low noise amplifier 406, and the filter 307 overlaps with at least a part of the corresponding low noise amplifier 411.
- overlapping at least one of the filter 304 and the filter 305 overlaps at least a part of the corresponding low noise amplifier when the mounting board 2 is viewed from the first direction D1.
- the filter 304 overlaps at least a part of the corresponding low noise amplifier 407
- the filter 305 overlaps at least a part of the corresponding low noise amplifier 408. overlapping.
- the path length between the filter 303 and the low noise amplifier 406, the path length between the filter 307 and the low noise amplifier 411, the path length between the filter 304 and the low noise amplifier 407, and the path length between the filter 305 and the low noise amplifier 408 are shortened. can do.
- the switch IC 100 and the first antenna switch 10 mounted on the second main surface 2b are covered.
- the second resin layer 62 is provided as described above.
- the high frequency module 1 includes a plurality of external connection electrodes 50 formed in a columnar shape, and is connected to the mother substrate by the plurality of external connection electrodes 50.
- the second resin layer is omitted on the second main surface 2b side of the mounting substrate 2, and the mother substrate is formed by a plurality of external connection electrodes 50a formed in a spherical shape. It may be connected to.
- Each of the plurality of external connection electrodes 50a is, for example, a ball bump formed in a spherical shape.
- the material of the ball bump is, for example, gold, copper, solder or the like.
- the high-frequency module includes a plurality of third antenna switches including the first antenna switch 10 and a plurality of fourth antenna switches including the second antenna switch 20. different.
- the high frequency module 1B includes an HB-DSM (Hight Band Diver City Module) and a MIMO (Multi Input Multi Output) module.
- HB-DSM Hight Band Diver City Module
- MIMO Multi Input Multi Output
- the high frequency module 1B and the communication device 500B of the present embodiment will be described focusing on the differences from the first embodiment.
- the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
- the communication device 500B includes a high frequency module 1B, an antenna 4, and a signal processing circuit 3.
- the high-frequency module 1B of the present embodiment includes a mounting board 2, a first antenna switch 10A, and a plurality of (two in the illustrated example) second antenna switches 20A and 20B.
- a filter group 30A and an amplification unit 40A are provided.
- the second antenna switch 20A and the second antenna switch 20B correspond to the fourth antenna switch of the present invention.
- the first antenna switch 10A includes a third antenna switch 10B that functions as the first antenna switch 10 described in the first embodiment and another third antenna switch 10C that has a function different from that of the first antenna switch 10. It is composed by being converted.
- the high frequency module 1B includes a plurality of (here, two) third antenna switches 10B and 10C connected to different antenna terminals T1 and T2. Of the plurality of third antenna switches 10B and 10C, one third antenna switch 10B functions as the first antenna switch 10 described in the first embodiment.
- the third antenna switch 10B includes an input terminal 101 and output terminals 102 and 103.
- the third antenna switch 10C includes an input terminal 121 and output terminals 122 and 103.
- the output terminal 103 is not an essential component of the third antenna switch 10C. That is, the third antenna switch 10C includes at least an input terminal 121 and an output terminal 122.
- the third antenna switch 10B that functions as the first antenna switch 10 and another third antenna switch 10C that has a function different from that of the first antenna switch 10 are integrated into one chip.
- the third antenna switch 10B that functions as the first antenna switch 10 and another third antenna switch 10C that has a function different from that of the first antenna switch 10 may be provided separately.
- the first antenna switch 10A is connected to each of the two antennas 4 and 7. Specifically, the input terminal 101 of the first antenna switch 10A is connected to the antenna terminal T1 connected to the antenna 4. The input terminal 121 of the first antenna switch 10A is connected to the antenna terminal T2 connected to the antenna 7.
- the output terminal 102 of the first antenna switch 10A is connected to the input terminal 201 of the second antenna switch 20A.
- the output terminal 103 of the first antenna switch 10A is connected to the input terminal of the filter 308 included in the filter group 30.
- the output terminal 122 of the first antenna switch 10A is connected to the input terminal 221 of the second antenna switch 20B.
- the first antenna switch 10A selects one of the output terminals 102 and 103 as the connection destination of the input terminal 101 according to the received signal under the control of the signal processing circuit 3.
- the first antenna switch 10A selects one of the output terminals 122 and 103 as the connection destination of the input terminal 121 according to the received signal under the control of the signal processing circuit 3.
- the input terminal 101 and the input terminal 121 are further connected to at least one of the matching circuits 110 and 111.
- the first antenna switch 10A is controlled by, for example, the signal processing circuit 3.
- the first antenna switch 10A switches the connection state of the first antenna switch 10A according to the control signal from the RF signal processing circuit 5 of the signal processing circuit 3.
- the high frequency module 1B has a plurality of (two in the illustrated example) second antenna switches 20A and 20B.
- Each of the plurality of second antenna switches 20A and 20B corresponds to each of the output terminals 102 and 122 of the first antenna switch 10A.
- the high frequency module 1B has a plurality of fourth antenna switches (second antenna switches 20A, 20B) corresponding to the plurality of third antenna switches 10B and 10C, respectively, and connected to the corresponding third antenna switches. ing.
- the second antenna switch 20A functions as the second antenna switch 20 described in the first embodiment.
- the second antenna switch 20A is connected to the first antenna switch 10A.
- the input terminal 201 of the second antenna switch 20A is connected to the output terminal 102 of the first antenna switch 10A.
- Each of the plurality of output terminals 202 to 208 of the second antenna switch 20A (seven in the illustrated example) is connected one-to-one to the plurality of filters 301 to 307 (see FIG. 5) included in the filter group 30A.
- the second antenna switch 20A is controlled by, for example, the signal processing circuit 3.
- the second antenna switch 20A switches the connection state of the second antenna switch 20A according to the control signal from the RF signal processing circuit 5 of the signal processing circuit 3.
- the second antenna switch 20A is configured to be able to be simultaneously connected to a plurality of filters included in the filter group 30A. That is, the input terminal 201 of the second antenna switch 20A can be simultaneously connected to two or more output terminals of the output terminals 202 to 208.
- the second antenna switch 20A may be connected to one filter included in the filter group 30A.
- the second antenna switch 20B is connected to the first antenna switch 10A.
- the input terminal 221 of the second antenna switch 20B is connected to the output terminal 122 of the first antenna switch 10A.
- Each of the plurality of (seven in the illustrated example) output terminals 222 to 228 of the second antenna switch 20B is connected one-to-one to the plurality of filters 321 to 327 (see FIG. 5) included in the filter group 30A.
- the second antenna switch 20B is controlled by, for example, the signal processing circuit 3.
- the second antenna switch 20B switches the connection state of the second antenna switch 20B according to the control signal from the RF signal processing circuit 5 of the signal processing circuit 3.
- the second antenna switch 20B is configured to be able to be simultaneously connected to a plurality of filters included in the filter group 30A. That is, the input terminal 221 of the second antenna switch 20B can be simultaneously connected to two or more output terminals of the output terminals 222 to 228.
- the second antenna switch 20B may be connected to one filter included in the filter group 30A.
- the filter group 30A has a plurality of filters 301 to 308 and 321 to 327.
- the plurality of filters 301 to 308 and 321 to 327 are, for example, elastic wave filters, and each of the plurality of series arm resonators and the plurality of parallel arm resonators is composed of elastic wave resonators.
- the surface acoustic wave filter is, for example, a SAW filter that utilizes surface acoustic waves.
- the plurality of filters 301 to 308 and 321 to 327 are not limited to SAW filters.
- the plurality of filters may be, for example, BAW filters other than SAW.
- the plurality of filters 301 to 308 and 321 to 327 may be configured by FBAR or the like.
- the filters 301 to 308 and 321 to 327 may be configured by an LC resonance circuit or the like.
- the filters 302 and 322 are, for example, triplexers in which the input terminals of the three filters are made into common terminals. Further, the filters 301, 306, 308, 321, 326 are, for example, duplexers in which the input terminals of the two filters are made into common terminals.
- Each of the input terminals of the filters 301 to 307 is connected one-to-one to a plurality of output terminals 202 to 208 of the second antenna switch 20A.
- the filter 308 is connected to the output terminal 103 of the first antenna switch 10A.
- Each of the input terminals of the filters 321 to 327 is connected one-to-one to a plurality of output terminals 222 to 228 of the second antenna switch 20B.
- the second antenna switch 20A functioning as the second antenna switch 20 of the first embodiment can be simultaneously connected to at least two of the filters 301 to 307.
- the second antenna switch 20B can be simultaneously connected to at least two of the filters 321 to 327. That is, in the filter group 30A, there are a plurality of combinations of at least two filters that are simultaneously connected. Of the plurality of combinations, each of the filters in the combination to which the second antenna switch 20A can be connected functions as the filter described in the first embodiment.
- the second antenna switch 20A (fifth antenna switch) has a plurality of filters 301 to 308, 321 to 327 (plurality of filters 301 to 308, 321 to 327).
- the filter 303 (fifth filter) of the third filter) and the filter 307 (sixth filter) of the plurality of filters 301 to 308 and 321 to 327 can be connected at the same time.
- the second antenna switch 20B (sixth antenna switch) is of a plurality of filters 301 to 308, 321 to 327 (plurality of third filters).
- the filter 323 (7th filter) and the filter 327 (8th filter) of the plurality of filters 301 to 308 and 321 to 327 can be connected at the same time.
- the amplification unit 40A has a plurality of low noise amplifiers 401 to 413 and 421 to 431.
- Each low noise amplifier 401 to 413, 421 to 431 amplifies the signal that has passed through the corresponding filter.
- Each of the low noise amplifiers 401 to 413 is, for example, a low noise amplifier.
- Each input terminal of the low noise amplifiers 401 to 413 and 421 to 431 is connected to the output terminal of the corresponding filter.
- Each output terminal of the low noise amplifiers 401 to 413 and 421 to 431 is connected to the signal processing circuit 3.
- the switch IC100A which is a semiconductor element, is configured by integrating the second antenna switch 20A and the low noise amplifiers 401 to 413 including the amplification unit 40 into one chip.
- the switch IC 100B which is a semiconductor element, is configured by integrating the second antenna switch 20B and the low noise amplifiers 421 to 431 including the amplification unit 40 into one chip.
- the arrangement of the first antenna switch 10A, the second antenna switches 20A, 20B, and a plurality of filters in the high frequency module 1B will be described.
- the plurality of filters the filters 303, 304, 305, 307, 323, 324, 325, and 327 shown in FIG. 5 are used.
- FIG. 6 shows a plan view of the high frequency module 1B as viewed from the first direction D1
- FIG. 7 shows a cross-sectional view of the high frequency module 1B.
- the first resin layer 61 is omitted.
- the first main surface 2a is provided with filters 301 to 308 and 321 to 327 included in the filter group 30A.
- Switches ICs 100A and 100B and a first antenna switch 10A are provided on the second main surface 2b.
- the switches ICs 100A and 100B and the first antenna switch 10A are arranged on the second main surface 2b of the mounting board 2 as described above (see FIG. 7).
- the second antenna switch 20A included in the switch IC 100A, the second antenna switch 20B included in the switch IC 100B, and the first antenna switch 10A are arranged in the second direction D2 (see FIGS. 6 and 7).
- the second antenna switch 20A is connected to the first antenna switch 10A via a conductor 80A provided on the second main surface 2b. Specifically, the input terminal 201 of the second antenna switch 20A is connected to the output terminal 102 of the first antenna switch 10A via the conductor 80A (see FIG. 6).
- the second antenna switch 20B is connected to the first antenna switch 10A via a conductor 80B provided on the second main surface 2b. Specifically, the input terminal 221 of the second antenna switch 20B is connected to the output terminal 122 of the first antenna switch 10A via the conductor 80B (see FIG. 6).
- the distance L11 between the external connection electrode 51 as the antenna terminal T1 and the first antenna switch 10A is shorter than the distance L12 between the antenna terminal T1 and the second antenna switch 20A.
- the distance L21 between the external connection electrode 50 as the antenna terminal T2 and the first antenna switch 10A is shorter than the distance L22 between the antenna terminal T2 and the second antenna switch 20B.
- the filters 303, 304, 305, 307 are arranged on the first main surface 2a of the mounting substrate 2 (see FIGS. 6 and 7).
- the filter 303 and the filter 307 are simultaneously connected to the second antenna switch 20A
- the filter 304 and the filter 305 are simultaneously connected to the second antenna switch 20A.
- the filters 323, 324, 325, 327 are arranged on the first main surface 2a of the mounting board 2 as described above (see FIGS. 6 and 7).
- the filter 323 and the filter 327 are simultaneously connected to the second antenna switch 20B, and the filter 324 and the filter 325 are simultaneously connected to the second antenna switch 20B.
- the two filters 303 and the filter 307 that are simultaneously connected are arranged along the second direction D2 (see FIG. 6).
- the two filters 304 and the filter 305 that are simultaneously connected are arranged along the second direction D2 (see FIG. 6).
- the two filters 323 and 327 that are connected at the same time are arranged along the second direction D2 (see FIG. 6).
- the two filters 324 and 325 that are connected at the same time are arranged along the second direction D2 (see FIG. 6).
- the filter 307 is connected to the second antenna switch 20A via the via 71A provided on the mounting board 2 (see FIG. 7).
- the filter 303 is connected to the second antenna switch 20A via the via 72A provided on the mounting board 2 (see FIG. 7).
- the filter 304 is connected to the second antenna switch 20A via a via (not shown) provided on the mounting board 2.
- the filter 305 is connected to the second antenna switch 20A via a via (not shown) provided on the mounting board 2.
- the filter 327 is connected to the second antenna switch 20B via the via 71B provided on the mounting board 2 (see FIG. 7).
- the filter 323 is connected to the second antenna switch 20B via the via 72B provided on the mounting board 2 (see FIG. 7).
- the filter 324 is connected to the second antenna switch 20B via a via (not shown) provided on the mounting board 2.
- the filter 325 is connected to the second antenna switch 20B via a via (not shown) provided on the mounting board 2.
- the distance between the first antenna switch 10A and the filter 303 is longer than the distance between the second antenna switch 20A and the filter 303.
- the distance between the first antenna switch 10A and the filter 307 is longer than the distance between the second antenna switch 20A and the filter 307.
- the distance between the first antenna switch 10A and the filter 304 is longer than the distance between the second antenna switch 20A and the filter 304.
- the distance between the first antenna switch 10A and the filter 305 is longer than the distance between the second antenna switch 20A and the filter 305.
- the distance between the first antenna switch 10A and the filter 323 is longer than the distance between the second antenna switch 20B and the filter 323.
- the distance between the first antenna switch 10A and the filter 327 is longer than the distance between the second antenna switch 20B and the filter 327.
- the distance between the first antenna switch 10A and the filter 324 is longer than the distance between the second antenna switch 20B and the filter 324.
- the distance between the first antenna switch 10A and the filter 325 is longer than the distance between the second antenna switch 20B and the filter 325.
- At least one of the filters 303 and 307 is at least a part of the second antenna switch 20A when the mounting board 2 is viewed from the first direction D1, that is, when the mounting board 2 is viewed in a plan view. It overlaps with. In the present embodiment, both the filter 303 and the filter 307 overlap with at least a part of the second antenna switch 20A when the mounting board 2 is viewed in a plan view.
- At least one of the filter 304 and the filter 305 overlaps with at least a part of the second antenna switch 20A when the mounting board 2 is viewed in a plan view. In the present embodiment, both the filter 304 and the filter 305 overlap with at least a part of the second antenna switch 20A when the mounting board 2 is viewed in a plan view.
- At least one of the filters 323 and 327 overlaps with at least a part of the second antenna switch 20B when the mounting board 2 is viewed from the first direction D1, that is, when the mounting board 2 is viewed in a plan view.
- both the filter 323 and the filter 327 overlap with at least a part of the second antenna switch 20B when the mounting board 2 is viewed in a plan view.
- At least one of the filter 324 and the filter 325 overlaps with at least a part of the second antenna switch 20B when the mounting board 2 is viewed in a plan view.
- both the filter 324 and the filter 325 overlap with at least a part of the second antenna switch 20B when the mounting board 2 is viewed in a plan view.
- At least one of the filters 303 and 307 overlaps with at least a part of the corresponding low noise amplifier when the mounting board 2 is viewed from the first direction D1.
- the filter 303 overlaps with at least a part of the corresponding low noise amplifier 406, and the filter 307 overlaps with at least a part of the corresponding low noise amplifier 411. overlapping.
- At least one of the filter 304 and the filter 305 overlaps with at least a part of the corresponding low noise amplifier when the mounting board 2 is viewed from the first direction D1.
- the filter 304 overlaps at least a part of the corresponding low noise amplifier 407
- the filter 305 overlaps at least a part of the corresponding low noise amplifier 408. overlapping.
- At least one of the filters 323 and 327 overlaps at least a part of the corresponding low noise amplifier when the mounting board 2 is viewed from the first direction D1.
- the filter 323 overlaps with at least a part of the corresponding low noise amplifier 426
- the filter 327 overlaps with at least a part of the corresponding low noise amplifier 431. overlapping.
- At least one of the filter 324 and the filter 325 overlaps at least a part of the corresponding low noise amplifier when the mounting board 2 is viewed from the first direction D1.
- the filter 324 overlaps with at least a part of the corresponding low noise amplifier 427
- the filter 325 overlaps with at least a part of the corresponding low noise amplifier 428. overlapping.
- the distance between the second antenna switch 20A and the filter 303 can be made shorter than the distance between the first antenna switch 10A and the filter 303.
- the distance between the second antenna switch 20B and the filter 323 can be made shorter than the distance between the first antenna switch 10A and the filter 323.
- the wiring length between the second antenna switch 20A and the filter 303 and the wiring length between the second antenna switch 20B and the filter 323 can be shortened, so that the deterioration of each filter specific can be suppressed. be able to.
- the distance L11 between the antenna terminal T1 (external connection electrode 51) and the first antenna switch 10A is shorter than the distance L12 between the antenna terminal T1 and the second antenna switch 20A.
- the distance L21 between the antenna terminal T2 and the first antenna switch 10A is shorter than the distance L22 between the antenna terminal T2 and the second antenna switch 20B. Therefore, the possibility of signal loss in the wiring between the antenna terminal T1 and the first antenna switch 10A and between the antenna terminal T2 and the first antenna switch 10A is suppressed.
- the high-frequency module 1B of the second embodiment can suppress the possibility of signal loss in the wiring from each of the antenna terminals T1 and T2, and also suppress the deterioration of the filter characteristics.
- At least one of the filters 303 and 307 overlaps with at least a part of the corresponding low noise amplifier when the mounting board 2 is viewed from the first direction D1.
- at least one of the filters 323 and 327 overlaps at least a portion of the corresponding low noise amplifier when the mounting board 2 is viewed from the first direction D1.
- the high frequency module 1B of the present embodiment includes the first antenna switch 10A and the second antenna switches 20A and 20B to form a module corresponding to a plurality of communication methods, for example, an HB-DSM and a MIMO module. It becomes possible. That is, the high frequency module 1B can communicate by a plurality of communication methods.
- the second antenna switch 20A may be composed of the first antenna switch 10A and one chip.
- the third antenna that functions as the first antenna switch 10 described in the first embodiment among the plurality of third antenna switches 10B and 10C.
- the switch 10B and the second antenna switch 20A may be integrated into one chip.
- the second antenna switch 20A and at least the third antenna switch 10B functioning as the first antenna switch 10 described in the first embodiment may be configured by one chip.
- the high frequency module (1; 1A; 1B) of the first aspect includes the mounting board (2), the antenna terminal (T1), the first antenna switch (10), and the second antenna switch (2). 20; 20A) and a first filter (eg, filter 303) and a second filter (eg, filter 307).
- the first antenna switch (10) includes a connection terminal (input terminal 101) connected to the antenna terminal (T1) and a selection terminal (output terminal 102) connected to the connection terminal.
- the second antenna switch (20; 20A) is connected to the selection terminal.
- the first filter and the second filter are connected to the second antenna switch (20; 20A).
- the second antenna switch (20; 20A) includes a common terminal (input terminal 201), a first selection terminal (for example, output terminal 204) and a second selection terminal (for example, output terminal 208) connected to the common terminal. ,including.
- the first filter is connected to the first selection terminal of the second antenna switch (20; 20A).
- the second filter is connected to the second selection terminal of the second antenna switch (20; 20A).
- the second antenna switch (20; 20A) is configured to be able to simultaneously execute the connection between the common terminal and the first selection terminal and the connection between the common terminal and the second selection terminal.
- the wiring length between the second antenna switch (20; 20A) and the first filter can be shortened, so that the filter specific decrease of the first filter can be suppressed. Since the wiring length between the first antenna switch (10) and the antenna terminal (T1) can also be shortened, the signal loss in the wiring between the antenna terminal (T1) and the first antenna switch (10) is reduced. The possibility of occurrence can be suppressed. Therefore, it is possible to suppress the possibility of signal loss in the wiring from the antenna terminal (T1) and also suppress the deterioration of the filter characteristics.
- the distance between the first antenna switch (10) and the second filter is the second. It is longer than the distance between the two-antenna switch (20; 20A) and the second filter.
- the mounting substrate (2) has the first main surface (2a) and the second main surface (2b) facing each other. And have.
- the first filter and the second filter are arranged on the first main surface (2a).
- At least one of the first antenna switch (10) and the second antenna switch (20; 20A) is arranged on the second main surface (2b).
- At least one of the first antenna switch (10) and the second antenna switch (20; 20A) is arranged on the second main surface (2b) to form an electronic component on the mounting board (2).
- the mounting area can be reduced.
- the high frequency module (1; 1A; 1B) can be miniaturized.
- both the first antenna switch (10) and the second antenna switch (20; 20A) have the second main surface (2b). Is placed in.
- the high frequency module (1; 1A; 1B) can be miniaturized.
- the second antenna switch (20; 20A) is arranged on the second main surface (2b). At least one of the first filter and the second filter (for example, filter 307) overlaps with at least a part of the second antenna switch (20; 20A) when the mounting substrate (2) is viewed in a plan view.
- the path length between the second antenna switch (20; 20A) and the filter that overlaps a part of the second antenna switch (20; 20A) among the first filter and the second filter is shortened. Can be done.
- one of the above filters is passed through vias (for example, vias 71 and 71A) provided on the mounting substrate (2). It is connected to the second antenna switch (20; 20A).
- the high frequency module (1; 1A; 1B) of the seventh aspect is the first low noise amplifier (for example, low noise amplifier 403) and the second low noise amplifier (for example, low noise amplifier) in any one of the third to sixth aspects. 411) and further.
- the first low noise amplifier is connected to the first filter and amplifies the signal that has passed through the first filter.
- the second low noise amplifier is connected to the second filter and amplifies the signal that has passed through the second filter.
- the first low noise amplifier and the second low noise amplifier are arranged on the second main surface (2b).
- the second antenna switch (20; 20A) is provided on the second main surface (2b).
- the second antenna switch (20; 20A), the first low noise amplifier, and the second low noise amplifier are configured by one chip.
- the high frequency module (1; 1A; 1B) can be miniaturized.
- the mounting substrate (2) when the mounting substrate (2) is viewed in a plan view in the seventh or eighth aspect, at least one of the first filter and the second filter is used. , The first low noise amplifier and the second low noise amplifier overlap with at least a part of the low noise amplifier connected to the one filter.
- the path length between one of the first filter and the second filter and the low noise amplifier connected to the one of the first low noise amplifier and the second low noise amplifier is shortened. Can be done.
- the high frequency module (1B) of the tenth aspect has a plurality of third antenna switches (10B, 10C) and a plurality of fourth antenna switches (for example, a second antenna switch) in any one of the first to ninth aspects. 20A, 20B), and a plurality of third filters (for example, filters 301 to 308, 321 to 327) and a plurality of fourth filters (for example, filters 301 to 308, 321 to 327).
- the plurality of third antenna switches (10B, 10C) are connected to different antenna terminals (for example, antenna terminal T1 and antenna terminal T2).
- the plurality of fourth antenna switches correspond to the plurality of third antenna switches, respectively, and are connected to the corresponding third antenna switches (10B, 10C).
- the plurality of third filters and the plurality of fourth filters are connected to the plurality of fourth antenna switches, respectively.
- the fifth antenna switch (for example, the second antenna switch 20A) among the plurality of fourth antenna switches is the fifth filter (for example, the filter 303) of the plurality of third filters and the fifth of the plurality of fourth filters. It is configured so that it can be connected to 6 filters (for example, filter 307) at the same time.
- the sixth antenna switch (for example, the second antenna switch 20B) among the plurality of fourth antenna switches is the seventh filter (for example, the filter 323) of the plurality of third filters and the fourth of the plurality of fourth filters. It is configured so that it can be connected to 8 filters (for example, filter 327) at the same time.
- one third antenna switch (10B) connected to the fifth antenna switch functions as the first antenna switch (10).
- the fifth antenna switch functions as the second antenna switch (20).
- the fifth filter and the sixth filter function as the first filter and the second filter, respectively.
- communication can be performed using multiple communication methods.
- the high-frequency module (1B) of the eleventh aspect includes the first third antenna switch (10B) and the first third antenna of the plurality of third antenna switches (10B, 10C). At least one third antenna switch (10C) different from the switch (10B) is composed of one chip.
- the high frequency module (1B) can be downsized.
- the high frequency module (1B) of the twelfth aspect is the tenth or eleventh aspect, and the fifth antenna switch is composed of the first third antenna switch (10B) and one chip.
- the high frequency module (1B) can be downsized.
- the mounting substrate (2) faces each other in the thickness direction (first direction D1) of the mounting substrate (2). It has a first main surface (2a) and a second main surface (2b). The first filter and the second filter are arranged on the first main surface (2a). It is connected to the first third antenna switch (10B) as the first antenna switch (10), the fifth antenna switch as the second antenna switch (20), the sixth antenna switch, and the sixth antenna switch, and is described above.
- the third antenna switch (10C) which is different from the first third antenna switch (10B), is arranged on the second main surface (2b).
- the high frequency module (1B) can be downsized.
- the high frequency module (1B) of the fourteenth aspect has a third antenna switch (10B) different from the third antenna switch (10B) of the plurality of third filters.
- the seventh filter to which the sixth antenna switch connected to the 10C) is connected overlaps with at least a part of the sixth antenna switch when the mounting board (2) is viewed in a plan view.
- the eighth filter to which the sixth antenna switch is connected overlaps with at least a part of the sixth antenna switch when the mounting board (2) is viewed in a plan view.
- the path length between the 7th filter and the 6th antenna switch can be shortened.
- the path length between the eighth filter and the sixth antenna switch can be shortened.
- the communication device (500; 500B) of the fifteenth aspect includes a high frequency module (1) of any one of the first to fourteenth aspects and a signal processing circuit (3) for signal processing.
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Abstract
Description
以下、本実施形態に係る高周波モジュール1及び通信装置500について、図1~図2Bを用いて説明する。
実施形態に係る高周波モジュール1は、例えば、マルチモード/マルチバンド対応の通信装置500に用いられる。通信装置500は、例えば、携帯電話(例えば、スマートフォン)であるが、これに限らず、例えば、ウェアラブル端末(例えば、スマートウォッチ)等であってもよい。
通信装置500は、図1に示すように、高周波モジュール1と、アンテナ4と、信号処理回路3と、を備える。
以上説明したように、本実施形態では、高周波モジュール1は、実装基板2と、アンテナ端子T1と、第1アンテナスイッチ10と、第2アンテナスイッチ20と、第1フィルタ(例えば、フィルタ303)及び第2フィルタ(例えば、フィルタ307)とを備える。第1アンテナスイッチ10は、アンテナ端子T1と接続される接続端子(例えば、入力端子101)及び接続端子と接続される選択端子(例えば、出力端子102)を含む。第2アンテナスイッチ20は、選択端子(出力端子102)と接続される。第1フィルタ及び第2フィルタは、第2アンテナスイッチ20に接続される。第2アンテナスイッチ20は、共通端子(入力端子201)と、共通端子と接続される第1選択端子(例えば出力端子204)及び第2選択端子(例えば出力端子208)と、を含む。第1フィルタは第1選択端子と接続され、第2フィルタは第2アンテナスイッチの第2選択端子と接続される。第2アンテナスイッチ20は、共通端子(入力端子201)と第1選択端子との接続、及び共通端子と第2選択端子との接続を同時に実行可能に構成されている。実装基板2を平面視した場合、アンテナ端子T1と第1アンテナスイッチ10との距離L1は、アンテナ端子T1と第2アンテナスイッチ20との距離L2よりも短い。第1アンテナスイッチ10と第1フィルタとの距離L3は、第2アンテナスイッチ20と第1フィルタとの距離L4よりも長い。
以下に、変形例について列記する。なお、以下に説明する変形例は、上記実施形態と適宜組み合わせて適用可能である。
上記実施形態では、第2アンテナスイッチ20と増幅部40とは、スイッチIC100に含まれる構成、つまり第2アンテナスイッチ20と増幅部40とが1チップ化される構成としたが、この構成に限定されない。
第2アンテナスイッチ20と増幅部40とが1チップ化されない場合において、第1アンテナスイッチ10及び第2アンテナスイッチ20のうち少なくとも一方のアンテナスイッチは、第1主面2aに設けられてもよい。
実施形態1に係る高周波モジュール1では、図1に示すように、実装基板2の第2主面2b側において、第2主面2b上に実装されているスイッチIC100及び第1アンテナスイッチ10を覆うように第2樹脂層62が設けられている。また、高周波モジュール1は、円柱状に形成されている複数の外部接続電極50を備えており、これら複数の外部接続電極50によりマザー基板に接続されている。
本実施形態では、上記第1アンテナスイッチ10を含む複数の第3アンテナスイッチと、上記第2アンテナスイッチ20を含む複数の第4アンテナスイッチとを、高周波モジュールが備えることが、実施形態1とは異なる。
以上説明したように、第1の態様の高周波モジュール(1;1A;1B)は、実装基板(2)と、アンテナ端子(T1)と、第1アンテナスイッチ(10)と、第2アンテナスイッチ(20;20A)と、第1フィルタ(例えば、フィルタ303)及び第2フィルタ(例えば、フィルタ307)とを備える。第1アンテナスイッチ(10)は、アンテナ端子(T1)と接続される接続端子(入力端子101)及び接続端子と接続される選択端子(出力端子102)を含む。第2アンテナスイッチ(20;20A)は、選択端子と接続される。第1フィルタ及び第2フィルタは、第2アンテナスイッチ(20;20A)に接続される。第2アンテナスイッチ(20;20A)は、共通端子(入力端子201)と、共通端子と接続される第1選択端子(例えば、出力端子204)及び第2選択端子(例えば、出力端子208)と、を含む。第1フィルタは、第2アンテナスイッチ(20;20A)の第1選択端子と接続される。第2フィルタは、第2アンテナスイッチ(20;20A)の第2選択端子と接続される。第2アンテナスイッチ(20;20A)は、共通端子と第1選択端子との接続、及び共通端子と第2選択端子との接続を同時に実行可能に構成される。実装基板(2)を平面視した場合、アンテナ端子(T1)と第1アンテナスイッチ(10)との距離は、アンテナ端子(T1)と第2アンテナスイッチ(20;20A)との距離よりも短い。かつ第1アンテナスイッチ(10)と第1フィルタとの距離は、第2アンテナスイッチと第1フィルタとの距離よりも長い。
2 実装基板
2a 第1主面
2b 第2主面
3 信号処理回路
4 アンテナ
10,10A 第1アンテナスイッチ
10B,10C 第3アンテナスイッチ
20 第2アンテナスイッチ
20A 第2アンテナスイッチ(第4アンテナスイッチ、第5アンテナスイッチ)
20B 第2アンテナスイッチ(第4アンテナスイッチ、第6アンテナスイッチ)
71,72,71A,72A ビア
101 入力端子(接続端子)
102 出力端子(選択端子)
201 入力端子(共通端子)
204 出力端子(第1選択端子)
208 出力端子(第2選択端子)
301~308,321~327 フィルタ
401~413,421~431 ローノイズアンプ
500 通信装置
T1 アンテナ端子
T2 アンテナ端子
D1 第1方向
Claims (15)
- 実装基板と、
アンテナ端子と、
前記アンテナ端子と接続される接続端子及び前記接続端子と接続される選択端子を含む第1アンテナスイッチと、
前記選択端子と接続される第2アンテナスイッチと、
前記第2アンテナスイッチに接続される第1フィルタ及び第2フィルタと、を備え、
前記第2アンテナスイッチは、共通端子と、前記共通端子と接続される第1選択端子及び第2選択端子と、を含み、
前記第1フィルタは、前記第2アンテナスイッチの前記第1選択端子と接続され、
前記第2フィルタは、前記第2アンテナスイッチの前記第2選択端子と接続され、
前記第2アンテナスイッチは、前記共通端子と前記第1選択端子との接続、及び前記共通端子と前記第2選択端子との接続を同時に実行可能に構成されており、
前記実装基板を平面視した場合、前記アンテナ端子と前記第1アンテナスイッチとの距離は、前記アンテナ端子と前記第2アンテナスイッチとの距離よりも短く、かつ前記第1アンテナスイッチと前記第1フィルタとの距離は、前記第2アンテナスイッチと前記第1フィルタとの距離よりも長い、
高周波モジュール。 - 前記実装基板を平面視した場合、前記第1アンテナスイッチと前記第2フィルタとの距離は、前記第2アンテナスイッチと前記第2フィルタとの距離よりも長い、
請求項1に記載の高周波モジュール。 - 前記実装基板は、互いに対向する第1主面と第2主面とを有し、
前記第1フィルタ及び前記第2フィルタは、前記第1主面に配置され、
前記第1アンテナスイッチ及び前記第2アンテナスイッチのうち少なくとも一方は、前記第2主面に配置される、
請求項1又は2に記載の高周波モジュール。 - 前記第1アンテナスイッチ及び前記第2アンテナスイッチの双方は、前記第2主面に配置される、
請求項3に記載の高周波モジュール。 - 前記第2アンテナスイッチは、前記第2主面に配置され、
前記第1フィルタ及び前記第2フィルタのうち少なくとも一方のフィルタは、前記実装基板を平面視した場合、前記第2アンテナスイッチの少なくとも一部と重なっている、
請求項3又は4に記載の高周波モジュール。 - 前記一方のフィルタは、前記実装基板に設けられたビアを介して、前記第2アンテナスイッチと接続されている、
請求項5に記載の高周波モジュール。 - 前記第1フィルタと接続され、前記第1フィルタを通過した信号を増幅する第1ローノイズアンプと、
前記第2フィルタと接続され、前記第2フィルタを通過した信号を増幅する第2ローノイズアンプと、を更に備え、
前記第1ローノイズアンプ及び前記第2ローノイズアンプは、前記第2主面に配置される、
請求項3~6のいずれか一項に記載の高周波モジュール。 - 前記第2アンテナスイッチは、前記第2主面に設けられており、
前記第2アンテナスイッチと前記第1ローノイズアンプ及び前記第2ローノイズアンプとは、1チップで構成されている、
請求項7に記載の高周波モジュール。 - 前記実装基板を平面視した場合、前記第1フィルタ及び前記第2フィルタのうち少なくとも一方のフィルタは、前記第1ローノイズアンプ及び前記第2ローノイズアンプのうち前記一方のフィルタと接続されたローノイズアンプの少なくとも一部と重なっている、
請求項7又は8に記載の高周波モジュール。 - 互いに異なるアンテナ端子に接続される複数の第3アンテナスイッチと、
前記複数の第3アンテナスイッチにそれぞれ対応し、対応する第3アンテナスイッチと接続される複数の第4アンテナスイッチと、
前記複数の第4アンテナスイッチにそれぞれ接続される複数の第3フィルタ及び複数の第4フィルタと、を備え、
前記複数の第4アンテナスイッチのうち第5アンテナスイッチは、前記複数の第3フィルタのうちの第5フィルタと、前記複数の第4フィルタのうち第6フィルタと同時接続可能に構成されており、
前記複数の第4アンテナスイッチのうち第6アンテナスイッチは、前記複数の第3フィルタのうちの第7フィルタと、前記複数の第4フィルタのうち第8フィルタと同時接続可能に構成されており、
前記複数の第3アンテナスイッチうち、前記第5アンテナスイッチと接続される一の第3アンテナスイッチは、前記第1アンテナスイッチとして機能し、
前記第5アンテナスイッチは、前記第2アンテナスイッチとして機能し、
前記第5フィルタ及び前記第6フィルタは、前記第1フィルタ及び前記第2フィルタとしてそれぞれ機能する、
請求項1~9のいずれか一項に記載の高周波モジュール。 - 前記複数の第3アンテナスイッチのうち、前記一の第3アンテナスイッチと、前記一の第3アンテナスイッチとは異なる少なくとも1つの第3アンテナスイッチとは、1チップで構成されている、
請求項10に記載の高周波モジュール。 - 前記第5アンテナスイッチは、前記一の第3アンテナスイッチと1チップで構成されている、
請求項10又は11に記載の高周波モジュール。 - 前記実装基板は、前記実装基板の厚さ方向において、互いに対向する第1主面と第2主面とを有し、
前記第1フィルタ及び前記第2フィルタは、前記第1主面に配置され、
前記第1アンテナスイッチとしての前記一の第3アンテナスイッチ、前記第2アンテナスイッチとしての前記第5アンテナスイッチ、前記第6アンテナスイッチ、及び前記第6アンテナスイッチと接続され、かつ前記一の第3アンテナスイッチとは異なる第3アンテナスイッチは、前記第2主面に配置される、
請求項10~12のいずれか一項に記載の高周波モジュール。 - 前記複数の第3フィルタのうち、前記一の第3アンテナスイッチとは別の第3アンテナスイッチと接続される前記第6アンテナスイッチが接続する前記第7フィルタは、前記実装基板を平面視した場合、前記第6アンテナスイッチの少なくとも一部と重なっている、
又は、
前記複数の第4フィルタのうち、前記第6アンテナスイッチが接続する第8フィルタは、前記実装基板を平面視した場合、前記第6アンテナスイッチの少なくとも一部と重なっている、
請求項10~13のいずれか一項に記載の高周波モジュール。 - 請求項1~14のいずれか一項に記載の高周波モジュールと、
信号処理する信号処理回路と、を備える、
通信装置。
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