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WO2021114340A1 - 一种天线阵列、 fpc 及电子设备 - Google Patents

一种天线阵列、 fpc 及电子设备 Download PDF

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Publication number
WO2021114340A1
WO2021114340A1 PCT/CN2019/126462 CN2019126462W WO2021114340A1 WO 2021114340 A1 WO2021114340 A1 WO 2021114340A1 CN 2019126462 W CN2019126462 W CN 2019126462W WO 2021114340 A1 WO2021114340 A1 WO 2021114340A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
frequency band
filter
trace
antenna array
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/126462
Other languages
English (en)
French (fr)
Inventor
陈卫
白松
陈志伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huizhou TCL Mobile Communication Co Ltd
Original Assignee
Huizhou TCL Mobile Communication Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huizhou TCL Mobile Communication Co Ltd filed Critical Huizhou TCL Mobile Communication Co Ltd
Priority to US17/617,586 priority Critical patent/US12149002B2/en
Publication of WO2021114340A1 publication Critical patent/WO2021114340A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/328—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground

Definitions

  • the present invention relates to the field of antenna technology, in particular to an antenna array, FPC and electronic equipment.
  • the antenna plays an increasingly important role in the communication system. Due to the interference between frequency band resources, the actual network may cause 5G system to cause greater interference to the previous 4G system and 3G system, or 4G system and 3G system to cause greater interference to the newly added 5G system. In the prior art, an antenna in an electronic device cannot support both a frequency band signal and another frequency band signal.
  • the embodiments of the present invention provide an antenna array, an FPC, and an electronic device to solve the problem that the antenna in the electronic device in the prior art cannot support signals in one frequency band as well as signals in another frequency band.
  • an antenna array which includes:
  • the line (3) is connected through the filter (4); the antenna feed point (1) is connected to the first antenna trace (2); the filter (4) is located at a distance from the antenna feed point ( 1) within the predetermined range; the working frequency band of the first antenna wiring (2) is the first frequency band, and the working frequency band of the second antenna wiring (3) is the second frequency band; the filter (4) Used to filter out the third frequency band in the first frequency band, so that the second frequency band can pass.
  • the antenna array includes: the filter (4) is a low-pass filter or a high-pass filter.
  • the antenna array further includes an antenna tuner (7), and the antenna tuner (7) is connected to the second antenna wiring (3); the first frequency band includes the second frequency band, The filter (4) is a low-pass filter, and the second frequency band is lower than the third frequency band.
  • the second frequency band is a 4G frequency band
  • the third frequency band is a 5G frequency band.
  • the antenna array further includes an antenna tuner (7'), and the antenna tuner (7') is connected to the second antenna wiring (3); the first frequency band includes the second Frequency band, the filter (4) is a high-pass filter, and the second frequency band is higher than the third frequency band.
  • the second frequency band is a 5G frequency band
  • the third frequency band is a 4G frequency band.
  • the types of the first antenna wiring (2) and the second antenna wiring (3) include:
  • Monopole antenna inverted F antenna, planar inverted F antenna, loop antenna.
  • the antenna array includes:
  • the antenna array is configured to guide a narrow beam at least in height and azimuth.
  • an embodiment of the present invention also provides an FPC, which includes the antenna array described in any one of the foregoing first aspects.
  • an embodiment of the present invention also provides an electronic device, including the FPC described in the second aspect.
  • the electronic device includes a mobile terminal or a base station.
  • the antenna array is located on the top, bottom, or left and right sides of the mobile terminal.
  • the embodiment of the present invention discloses an antenna array, an FPC and an electronic device.
  • the antenna array includes an antenna feed point, a first antenna line, a second antenna line, and a filter; wherein, the first antenna line and the second antenna line
  • the antenna trace is connected through the filter; the antenna feed point is connected to the first antenna trace; the filter is located within a predetermined range from the antenna feed point; the working frequency band of the first antenna trace is the first frequency band, and the second antenna trace
  • the working frequency band is the second frequency band; the filter is used to filter out the third frequency band in the first frequency band and pass the second frequency band.
  • the embodiment of the present invention directly adds a filter on the basis of the 4G antenna array of the existing FPC board.
  • the antenna structure is compact, the processing process is simple, and the yield is high, which reduces the cost of the FPC antenna.
  • the antenna structure is compact, the processing process is simple, and the yield is high, which reduces the cost of the FPC antenna.
  • With minor changes to the 4G antenna array it meets the need for its antenna to support signals in two frequency bands at the same time, and solves the problem that the antennas of electronic equipment in the prior art can not support both signals in one frequency band and signals in another frequency band.
  • the problem of avoiding the mutual influence between the 4G antenna trace and the 5G antenna trace can be widely used in electronic devices with limited internal space, which facilitates the large-scale promotion and application of corresponding electronic devices, thereby facilitating a smooth transition from 4G to 5G.
  • Fig. 1 shows an embodiment of the present invention applied to a wireless communication network.
  • Fig. 2 is a schematic diagram of an antenna array provided by an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of another antenna array provided by an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of another antenna array provided by an embodiment of the present invention.
  • the present invention provides an antenna array, FPC, and electronic equipment.
  • FPC field-programmable gate array
  • electronic equipment In order to make the objectives, technical solutions and effects of the present invention clearer and clearer, the present invention will be described in further detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, but not used to limit the present invention.
  • the network may include multiple cells 11, and the cell 11 includes a base station 12 and a mobile terminal 13.
  • the network can adopt various communication protocols or standards for voice communication and data communication.
  • the mobile terminal 13 can communicate in the network, and the mobile terminal device 3 can also communicate with a satellite navigation system 14 (such as the Global Positioning System (GPS), Beidou, and the Global Navigation Satellite System (Global Navigation Satellite System) for short).
  • GPS Global Positioning System
  • Beidou Beidou
  • Global Navigation Satellite System Global Navigation Satellite System
  • the mobile terminal 13 can communicate with a mobile switching center 15 (mobile telephone The switching center, referred to as MSC for short, can communicate with the public switched telephone network 16 (Public Switched Telephone Network (PSTN) communication can also communicate with other mobile terminals through the mobile switching center 15 or the public switched telephone network 16, and can also exchange data with the router 17, and the base station 12 can also communicate with the mobile terminal through a specific channel 13 to communicate.
  • MSC mobile switching center
  • PSTN Public Switched Telephone Network
  • the 5G system includes both new wireless transmission technologies and the subsequent evolution of various existing wireless access technologies, the 5G system is bound to integrate multiple wireless access technologies, such as 5G, 4G, and universal mobile communication systems.
  • UMTS telecommunications system
  • WiFi integration and coordination especially needs to achieve the problem of compound use between antennas of various generations of mobile communication systems.
  • the embodiment of the present invention provides an antenna array as shown in FIG. 2.
  • the antenna array can be applied to, for example, personal computers (PC), desktop computers, mobile computers, laptop computers, notebook computers, Tablet computers, UltrabookTM computers, server computers, handheld computers, handheld devices, personal digital assistants (PDA) devices, handheld PDA devices, vehicle-mounted devices, mobile or portable devices, base stations and other electronic devices with wireless communication capabilities.
  • the antenna may include any suitable configuration, structure, and/or arrangement of one or more antenna elements, components, units, components, and/or arrays. In some embodiments, the antenna may use separate transmitting and receiving antenna elements to implement transmitting and receiving functions.
  • the antenna may use a shared and/or integrated transmit/receive element to achieve transmit and receive functions.
  • the antenna may include, for example, a phased array antenna, a single element antenna, a set of beam switching antennas, and/or the like.
  • FIG. 2 is a schematic diagram of an antenna array according to an embodiment of the present invention.
  • the antenna array includes an antenna feed point 1, a first antenna trace 2, a second antenna trace 3, and a filter 4.
  • the first antenna trace 2 and the second antenna trace 3 are connected by the filter 4.
  • the first antenna trace 2 and the second antenna trace 3 can be designed as a trace from the feed point, without bypass or branch.
  • the filter device can be directly soldered on the antenna FPC, which has a simple process and has less loss than soldered on a PCB.
  • the antenna feed point 1 is connected to the first antenna trace 2, and the filter 4 is located within a predetermined range from the antenna feed point 1. In an alternative embodiment, the filter 4 is located 10-15 mm from the antenna feed point 1.
  • the working frequency band of the first antenna line 2 is the first frequency band
  • the working frequency band of the second antenna line 3 is the second frequency band
  • the filter 4 is used to filter out the third frequency band in the first frequency band and pass the second frequency band.
  • the first antenna trace 2 and the second antenna trace 3 refer to diversity antennas.
  • electronic equipment has the need to transmit at least one generation of communication signals from the second to fifth generation mobile communication signals (2G to 5G signals), as well as the use of global positioning system (GPS) and wireless
  • GPS global positioning system
  • WiFi wireless
  • the embodiments of the present invention regard antennas capable of transmitting 2G to 5G signals as antennas of the same specification, and such antennas of the same specification may be called diversity antennas.
  • An antenna capable of transmitting GPS signals or WiFi signals is regarded as another standardized antenna, and such an antenna with the same specification can be called an auxiliary antenna.
  • the filter is a frequency selection device that can pass specific frequency components in the signal while greatly attenuating other frequency components. Using the frequency selection function of the filter, interference noise can be filtered out or spectrum analysis can be performed.
  • filters are directly added on the basis of the 4G antenna array of the existing FPC board.
  • the antenna has a compact structure, simple processing process and high yield, which reduces the cost of the FPC antenna. With minor changes to the 4G antenna array, it meets the need for its antenna to support signals in two frequency bands at the same time, and solves the problem that the antennas of electronic equipment in the prior art can not support both signals in one frequency band and signals in another frequency band. It avoids the mutual influence between 4G antenna traces and 5G antenna traces, and can be widely used in electronic devices with limited internal space, facilitating the large-scale promotion and application of corresponding electronic devices, thereby facilitating the realization of 4G Smooth transition to 5G.
  • the first antenna line 2 and the second antenna line 3 are used for signal transmission, they can be monopole antenna, inverted F antenna, planar inverted F antenna (PIFA antenna), loop antenna (Loop) Any type of antenna in the.
  • the above-mentioned antenna array may have a larger aperture, thereby having a larger gain, and can guide narrow beams at different angles.
  • the antenna array may be configured to be in at least two dimensions ( For example, in height and azimuth) narrow beams are guided at different angles.
  • the above-mentioned antenna array may be a modular phased antenna array.
  • the modular phased antenna array is only used as an example to facilitate the understanding by those skilled in the art and cannot be understood as performing the antenna array. Limited, the specific antenna array used can be flexibly selected according to the actual situation.
  • the low-pass filter is an electronic filtering device that allows signals lower than the cut-off frequency to pass, but signals higher than the cut-off frequency cannot pass.
  • the filter 4 may be a low-pass filter 5.
  • a high-pass filter also known as a low-cut filter or a low-cut filter, is a filter that allows frequencies higher than a certain cut-off frequency to pass and greatly attenuates lower frequencies.
  • the filter 4 can also be a high-pass filter 6.
  • FIG. 3 is a schematic diagram of another antenna array according to an embodiment of the present invention.
  • the antenna array further includes an antenna tuner 7.
  • the antenna tuner 7 is connected to the second antenna wiring 3, and the filter 4 is a low-pass filter.
  • the first frequency band includes the second frequency band, and the second frequency band is lower than the third frequency band.
  • the first antenna trace 2 is an antenna coil, and the radiator part of the antenna coil is used for signal transmission.
  • the antenna coil of the first antenna trace 2 can not only realize the transmission of the diversity signal 4G signal, but also Realize the transmission of the 5G signal of the diversity signal, that is, the first frequency band includes the 4G frequency band and the 5G frequency band.
  • the filter feature allows certain frequency signals to pass through, but filters out other frequency signals.
  • 4G band signals work below 3Ghz, and N77/N78/N79, which is the first to be enabled by 5G, work in 3G-5Ghz frequency bands.
  • the filter 4 is a low-pass filter 5
  • only signals lower than 3Ghz are allowed to pass, and signals higher than 3Ghz are filtered/cut.
  • the low-pass filter 5 filters out the 5G frequency band of the third frequency band in the first frequency band, so that The second frequency band passes through the 4G frequency band.
  • 5G high-frequency signals because of the filtering effect of the filter, there are only 5G high-frequency signals on a section of the trace from the antenna feed point to the filter. It is a 5G antenna.
  • the resonance of the low-frequency antenna is tuned as needed, but the resonance of the 5G high-frequency antenna is completely unaffected and unchanged.
  • the second antenna trace 3 works in the 4G frequency band, and the combined use of the 4G antenna and the 5G antenna is realized.
  • FIG. 4 is a schematic diagram of another antenna array according to an embodiment of the present invention.
  • the antenna array further includes an antenna tuner 7'.
  • the antenna tuner 7' is connected to the second antenna trace 3, and the filter 4 is a high-pass filter.
  • the first frequency band includes the second frequency band, and the second frequency band is higher than the third frequency band.
  • the first antenna trace 2 is an antenna coil, and the radiator part of the antenna coil is used for signal transmission.
  • the antenna coil of the first antenna trace 2 can not only realize the transmission of the diversity signal 4G signal, but also Realize the transmission of the 5G signal of the diversity signal, that is, the first frequency band includes the 4G frequency band and the 5G frequency band.
  • the filter feature allows certain frequency signals to pass through, but filters out other frequency signals.
  • 4G band signals work below 3Ghz, and N77/N78/N79, which is the first to be enabled by 5G, work in 3G-5Ghz frequency bands.
  • the filter 4 is a high-pass filter 6, only signals higher than 3Ghz are allowed to pass, and signals lower than 3Ghz are filtered/cut.
  • the high-pass filter 6 filters out the 4G frequency band of the second frequency band in the first frequency band, making the third frequency band
  • the frequency band 5G is passed, so that the second antenna trace 3 works in the 5G frequency band, and the combined use of the 4G antenna and the 5G antenna is realized.
  • the embodiment of the present invention also provides a flexible printed circuit (Flexible Printed Circuit, referred to as FPC for short), which includes the antenna array of any one of the foregoing embodiments.
  • FPC Flexible Printed Circuit
  • FPC is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as a base material. It has high wiring density, light weight, thin thickness, and bending. Features of good foldability.
  • FPC is not only a flexible circuit board, but it is also an important design method of integrated circuit structure. This structure can be combined with other electronic product designs to build a variety of different applications. Therefore, from this point of view, FPC and Printed Circuit Board (PCB) are different. For PCB boards, they are generally flat.
  • FPC achieves the purpose of making full use of the three-dimensional space.
  • the current common space extension solution is to use slots to add interface cards, but FPCs can make similar structures as long as they are designed with adapters, and the directional design is also more flexible.
  • An embodiment of the present invention also provides an electronic device, including the FPC in the foregoing embodiment. It can be understood that the electronic device in this embodiment is provided with an FPC including the antenna array in the above-mentioned embodiment. In the case of small changes in the area of the antenna array, a certain internal space of the electronic device can be ensured, which is beneficial to the internal components. Reasonable installation, and realize the miniaturization and thinning of electronic equipment. At the same time, the signal receiving and sending capabilities of electronic devices have been expanded, and various types of signal processing capabilities have been realized, thereby realizing a smooth and stable transition of the mobile communication systems of the previous and previous generations, and providing a good user experience.
  • the electronic device includes the above-mentioned FPC circuit board, a radio frequency system, and a battery.
  • the radio frequency system can include various existing circuit elements for performing these functions.
  • the radio frequency system also includes, for example, a radio frequency transceiver, a digital signal processor, an encryption/decryption chip, and a subscriber identity module (SIM ) Card, memory, etc.
  • SIM subscriber identity module
  • the radio frequency system can communicate with various networks such as the Internet, corporate intranet, and wireless networks, or communicate with other devices through wireless networks.
  • the aforementioned wireless network may include a cellular telephone network, a wireless local area network, or a metropolitan area network.
  • the above-mentioned wireless networks can use various communication standards, protocols and technologies, including but not limited to the Global System for Mobile Communications (Global System for Mobile Communication, GSM for short), Enhanced Data GSM Environment (EDGE for short), and Wideband Code Division Multiple Access (Wideband Code) technology Division Multiple Access, referred to as WCDMA), code division multiple access technology (Code Division Access, referred to as CDMA), time division multiple access technology (Time Division Multiple Access, referred to as TDMA), wireless fidelity technology (Wireless Fidelity, abbreviated as Wi-Fi) (such as the American Institute of Electrical and Electronics Engineers standard IEEE 802.11a, IEEE 802.11b, IEEE802.11g and/or IEEE 802.11n), Voice over Internet Protocol (VoIP), Worldwide Microwave Interconnection Access (Worldwide Interoperability for Microwave Access, referred to as Wi-Max), other protocols used for mail, instant messaging and short messages, and any other suitable communication protocols, even those that have not yet been developed.
  • GSM Global System for Mobile Communication
  • the circuit board includes a main board placed on the upper side of the battery and a sub board placed on the lower side of the battery, a radio frequency processing circuit, a radio frequency transceiver coupled to the radio frequency processing circuit, and the radio frequency processing circuit is connected to the antenna array.
  • the above-mentioned electronic device includes a mobile terminal or a base station.
  • the specific mobile terminal can be a 5G NR mobile phone terminal or other 5G NR terminal equipment, such as customer contract equipment (Customer Premise Equipment, referred to as CPE) or portable broadband wireless device (Mobile Wifi, referred to as MIFI).
  • CPE Customer Premise Equipment
  • MIFI portable broadband wireless device
  • the mobile phone in addition to the above-mentioned FPC circuit board, the mobile phone also includes a memory, an input unit, a display unit, a sensor, an audio circuit, a speaker, a microphone, a transmission module, a camera, a Bluetooth module, etc.
  • the memory includes high-speed random access memory, and can also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory, used to store software programs and modules;
  • the input unit can be used to receive input Digital or character information, as well as keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control;
  • the display unit may include a display panel, and a liquid crystal display may be used (Liquid Crystal Display, abbreviated as LCD), Organic Light-Emitting Diode (abbreviated as OLED) and other forms to configure the display panel, used to display the information input by the user or the information provided to the user and the mobile terminal Graphical user interfaces.
  • LCD Liquid Crystal Display
  • OLED Organic Light-Emitting Diode
  • graphical user interfaces can be composed of graphics, text, icons, videos, and any combination thereof; sensors include, for example, light sensors, motion sensors, and other sensors; audio circuits can convert received audio data into electrical The signal is transmitted to the speaker; the speaker is used to convert the audio data into a sound signal for output; the microphone is used to convert the collected sound signal into an electrical signal, which is received by the audio circuit and converted into audio data, and then the audio data is output to the processor for processing ,
  • the transmission module (such as Wi-Fi module) can help users send and receive e-mail, browse the web and access streaming media, etc., it provides users with wireless broadband Internet access; processor It is the control center of the mobile phone.
  • the processor may include one or more processing cores; in some embodiments, the processor may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, and application programs. And so on, the modem processor mainly deals with wireless communication.
  • the antenna device when the electronic device includes a mobile terminal, is located on the top, bottom, or left and right sides of the mobile terminal, thereby saving the space of the mobile terminal and increasing the promotion and application of the mobile terminal.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
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Abstract

天线阵列包括：天线馈点、第一天线走线、第二天线走线以及滤波器；第一天线走线和第二天线走线通过滤波器连接；天线馈点与第一天线走线连接；滤波器位于距离天线馈点的预定范围内；第一天线走线的工作频段为第一频段，第二天线走线的工作频段为第二频段；滤波器用于滤除第一频段中第三频段，使所述第二频段通过。

Description

一种天线阵列、FPC及电子设备
本申请要求于2019年12月13日提交中国专利局、申请号为201911285900.4、发明名称为“天线阵列、FPC及电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及天线技术领域，尤其涉及一种天线阵列、FPC及电子设备。
 背景技术
天线作为移动通信系统的感知器官在通信系统中的作用越来越重要。由于频段资源之间的干扰，实际组网可能会出现5G系统对之前4G系统、3G系统造成较大的干扰，或者4G系统、3G系统对新增的5G系统造成较大的干扰的现象。现有技术中，电子设备中的天线不能实现既能支持一种频段信号，又能支持另一种频段信号。
 技术问题
本发明实施例提供一种天线阵列、FPC及电子设备，以解决现有技术中电子设备中的天线不能实现既能支持一种频段信号，又能支持另一种频段信号的问题。
 技术解决方案
第一方面，本发明实施例提供了一种天线阵列，其包括：
天线馈点（1）、第一天线走线（2）、第二天线走线（3）以及滤波器（4）；其中，所述第一天线走线（2）和所述第二天线走线（3）通过所述滤波器（4）连接；所述天线馈点（1）与所述第一天线走线（2）连接；所述滤波器（4）位于距离所述天线馈点（1）的预定范围内；所述第一天线走线（2）的工作频段为第一频段，所述第二天线走线（3）的工作频段为第二频段；所述滤波器（4）用于滤除所述第一频段中第三频段，使所述第二频段通过。
可选地，天线阵列包括：所述滤波器（4）为低通滤波器或者为高通滤波器。
可选地，所述天线阵列还包括天线调谐器（7），所述天线调谐器（7）与所述第二天线走线（3）连接；所述第一频段包含所述第二频段，所述滤波器（4）为低通滤波器，所述第二频段低于所述第三频段。
可选地，所述第二频段为4G频段，所述第三频段为5G频段。
可选地，所述天线阵列还包括天线调谐器（7’ ），所述天线调谐器（7’ ）与所述第二天线走线（3）连接；所述第一频段包含所述第二频段，所述滤波器（4）为高通滤波器，所述第二频段高于所述第三频段。
可选地，所述第二频段为5G频段，所述第三频段为4G频段。
可选地，所述第一天线走线（2）和所述第二天线走线（3）的类型包括：
单极天线、倒F天线、平面倒F天线、环形天线。
可选地，所述天线阵列包括：
配置所述天线阵列为至少在高度和方位上引导窄波束。
第二方面，本发明实施例还提供了一种FPC，其包括上述第一方面中任一所述的天线阵列。
第三方面，本发明实施例还提供了一种电子设备，包括上述第二方面所述的FPC。
可选地，所述电子设备包括移动终端或者基站。
可选地，所述电子设备包括移动终端时，所述天线阵列位于所述移动终端的顶部、底部或左右两侧。
 有益效果
本发明实施例公开了一种天线阵列、FPC及电子设备，其中，天线阵列包括天线馈点、第一天线走线、第二天线走线以及滤波器；其中，第一天线走线和第二天线走线通过滤波器连接；天线馈点与第一天线走线连接；滤波器位于距离天线馈点的预定范围内；第一天线走线的工作频段为第一频段，第二天线走线的工作频段为第二频段；滤波器用于滤除第一频段中第三频段，使所述第二频段通过。以4G和5G复合天线为例，本发明实施例在现有FPC板的4G天线阵列基础上直接添加滤波器，天线结构紧凑，加工过程简单且成品率较高，降低了FPC天线的成本，在对4G天线阵列改动较小的情况下满足其天线同时支持两种频段信号的需求，解决了现有技术中电子设备的天线不能实现既能支持一种频段信号，又能支持另一种频段信号的问题，避免了4G天线走线和5G天线走线之间的相互影响。而且可以广泛应用于内部空间受限的电子设备中，便于相应电子设备大规模地推广和应用，从而有利于实现4G到5G的平稳过渡。
 附图说明
图1为本发明实施例应用于一种无线通信网络。
图2为本发明实施例提供的天线阵列示意图。
图3为本发明实施例提供的另一天线阵列示意图。
图4为本发明实施例提供的另一天线阵列示意图。
主要附图标记说明：
11、蜂窝小区；12、基站；13、移动终端；14、卫星导航系统；15、移动交换中心；16、公共交换电话网络；17、路由器；
1、天线馈点；2、第一天线走线；3、第二天线走线；4、滤波器；
5、低通滤波器；6、高通滤波器；
7、天线调谐器；
7’ 、天线调谐器。
 本发明的实施方式
本发明提供一种天线阵列、FPC及电子设备，为使本发明的目的、技术方案及效果更加清楚、明确，以下对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
请参阅图1，图1为本发明实施例应用于一种无线通信网络，该网络可以包括多个蜂窝小区11，蜂窝小区11包括基站12和移动终端13。该网络可以采用各种通信协议或标准来进行语音通信以及数据通信。移动终端13可以在该网络中通信，同时移动终端装置3也可以与卫星导航系统14（如全球定位系统(Global Positioning System，简称为GPS)、北斗、全球卫星导航系统（Global Navigation Satellite System，简称为GLONASS等）进行通信，该移动终端13可以与移动交换中心15（mobile telephone switching center，简称为MSC）通信，可以与公共交换电话网络16（Public Switched Telephone Network，简称为PSTN）通信，也可以通过移动交换中心15或公共交换电话网络16与其他移动终端通信，同时也可以与路由器17进行数据交换，基站12也可以通过特定的信道与该移动终端13进行通信。
由于5G系统既包括新的无线传输技术，也包括现有的各种无线接入技术的后续演进，5G系统必然是将多种无线接入技术，例如5G、4G、通用移动通信系统（universal mobile telecommunications system, 简称为UMTS）和WiFi融合、协同的多制式共存的异构网络，尤其需要实现各代移动通信系统天线之间的复合使用问题。
面对上述问题，本发明实施例提供了一种如图2所示的天线阵列，该天线阵列可以应用于例如：个人计算机(PC)、台式计算机、移动计算机、膝上型计算机、笔记本计算机、平板计算机，超极本TM计算机、服务器计算机、手持计算机、手持设备、个人数字助理(PDA)设备、手持PDA设备、车载设备、移动或便携式设备、基站等具备无线通信功能的电子设备。天线可以包括一个或多个天线元件、组件、单元、部件和/或阵列的任何合适的配置、结构和/或布置。在一些实施例中，天线可以使用单独的发射和接收天线元件实现发射和接收功能。在一些实施例中，天线可以使用共用和/或集成的发射/接收元件实现发射和接收功能。天线例如可以包括相控阵列天线、单元件天线、一组波束转换天线和/或类似物。
需要说明的是，下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
请参阅图2，图2是根据本发明实施例的天线阵列示意图，天线阵列包括天线馈点1、第一天线走线2、第二天线走线3以及滤波器4。第一天线走线2和第二天线走线3通过滤波器4连接，第一天线走线2和第二天线走线3可以设计为从馈点开始的一条走线，无旁路无分支。关于走线与滤波器的连接方式，在一个可选实施例中，滤波器器件可直接焊接在天线FPC上，工艺简单，并且比焊接在PCB上损耗更小。
天线馈点1与第一天线走线2连接，滤波器4位于距离该天线馈点1的预定范围内，在一个可选实施例中，滤波器4位于从天线馈点1开始10-15mm的位置，本领域技术人员应当知晓，由于天线阵列结构的不同会导致以上数据的变化，根据实现相应的响应谐振所需的走线长度灵活选择即可，任何显而易见的数据变化均在本实施例的保护范围之内。
第一天线走线2的工作频段为第一频段，第二天线走线3的工作频段为第二频段，滤波器4用于滤除第一频段中第三频段，使第二频段通过。第一天线走线2和第二天线走线3指的是分集天线。考虑到在实际应用中，电子设备既具有传输第2代移动通信信号～第5代移动通信信号(2G～5G信号)中至少一代通信信号的需求，也具有使用全球定位系统(GPS)、无线保真技术(WiFi)的需求，本发明实施例将能够传输2G～5G信号的天线视为同一种规范的天线，这种同规范的天线可称为分集天线。将能够传输GPS信号、或WiFi信号的天线视为另一种规范的天线，这种同规范的天线可称为辅助天线。
滤波器是一种选频装置，可以使信号中特定的频率成分通过，而极大地衰减其他频率成分。利用滤波器的这种选频作用，可以滤除干扰噪声或进行频谱分析。以4G和5G复合天线为例，通过上述实施例在现有FPC板的4G天线阵列基础上直接添加滤波器，天线结构紧凑，加工过程简单且成品率较高，降低了FPC天线的成本，在对4G天线阵列改动较小的情况下满足其天线同时支持两种频段信号的需求，解决了现有技术中电子设备的天线不能实现既能支持一种频段信号，又能支持另一种频段信号的问题，避免了4G天线走线和5G天线走线之间的相互影响，而且可以广泛应用于内部空间受限的电子设备中，便于相应电子设备大规模地推广和应用，从而有利于实现4G到5G的平稳过渡。
不论第一天线走线2、第二天线走线3作为哪种形式的天线进行信号的传输，均可以是单极天线、倒F天线、平面倒F天线(PIFA天线)、环形天线(Loop)中任意一种类型的天线。
在一个可选实施例中，上述天线阵列可以具有较大的口径，从而具有较大的增益，并可以以不同的角度引导窄波束，具体地，天线阵列可以被配置为在至少两个维度(比如，在高度和方位上)以不同的角度引导窄波束。
在一个可选实施例中，上述天线阵列可以是模块化相控天线阵列，需要说明的是，模块化相控天线阵列仅作为示例，以便于本领域技术人员理解，不能理解为对天线阵列进行限定，具体采用何种天线阵列可以根据实际情况灵活选择。
低通滤波器是容许低于截止频率的信号通过，但高于截止频率的信号不能通过的电子滤波装置，在一个可选实施例中，滤波器4可以为低通滤波器5。高通滤波器，又称低截止滤波器、低阻滤波器，允许高于某一截频的频率通过，而大大衰减较低频率的一种滤波器，在另一个可选实施例中，滤波器4还可以为高通滤波器6。
请参阅图3，图3是根据本发明实施例的另一天线阵列示意图，天线阵列还包括天线调谐器7，天线调谐器7与第二天线走线3连接，在滤波器4为低通滤波器5时，第一频段包含第二频段，第二频段低于第三频段。在本实施例中，第一天线走线2是天线线圈，利用天线线圈的辐射体部分进行信号的传输，利用第一天线走线2的天线线圈既能够实现对分集信号4G信号的传输也能实现对分集信号5G信号的传输，即第一频段包括4G频段和5G频段。滤波器特点即允许一定频率信号通过，但对另外一些频率信号滤除，4G频段信号工作在3Ghz以下，5G率先启用的N77/N78/N79工作在3G-5Ghz频段。滤波器4为低通滤波器5时，只允许低于3Ghz的信号通过，对高于3Ghz的信号滤除/截止，低通滤波器5将第一频段中第三频段5G频段滤除，使得第二频段4G频段通过，对5G高频信号来讲，因为滤波器的滤除作用，所以只有在从天线馈点到滤波器之间的一段走线上有5G高频信号，只有这一段才为5G天线，当低频天线由天线调谐器进行调谐时，低频天线谐振根据需要在调谐，但5G高频天线谐振完全不受影响，无变化。从而使得第二天线走线3工作在4G频段，实现了4G天线和5G天线的复合使用。
请参阅图4，图4是根据本发明实施例的另一天线阵列示意图，天线阵列还包括天线调谐器7’，天线调谐器7’与第二天线走线3连接，在滤波器4为高通滤波器6时，第一频段包含第二频段，第二频段高于该第三频段。在本实施例中，第一天线走线2是天线线圈，利用天线线圈的辐射体部分进行信号的传输，利用第一天线走线2的天线线圈既能够实现对分集信号4G信号的传输也能实现对分集信号5G信号的传输，即第一频段包括4G频段和5G频段。滤波器特点即允许一定频率信号通过，但对另外一些频率信号滤除，4G频段信号工作在3Ghz以下，5G率先启用的N77/N78/N79工作在3G-5Ghz频段。滤波器4为高通滤波器6时，只允许高于3Ghz的信号通过，对低于3Ghz的信号滤除/截止，高通滤波器6将第一频段中第二频段4G频段滤除，使得第三频段5G频段通过，从而使得第二天线走线3工作在5G频段，实现了4G天线和5G天线的复合使用。
本发明实施例还提供了一种柔性电路板（Flexible Printed Circuit，简称为FPC），包括上述实施例中任一该的天线阵列。具体地， FPC是以聚酰亚胺或聚酯薄膜为基材制成的一种具有高度可靠性，绝佳的可挠性印刷电路板，具有配线密度高、重量轻、厚度薄、弯折性好的特点。FPC不仅是可以挠曲的电路板，同时它也是连成立体线路结构的重要设计方式，这种结构搭配其他电子产品设计，可以构建出各式各样不同的应用，因此从这点来看，FPC与印制电路板（ Printed Circuit Board，简称为PCB）是不同的。对于PCB板而言，在一般状况下都是平面式的。因此FPC实现了充分利用立体空间的目的。以PCB板而言，目前常见的空间延伸方案就是利用插槽加上介面卡，但是FPC只要以转接设计就可以做出类似结构，且在方向性设计也较有弹性。
本发明实施例还提供了一种电子设备，包括上述实施例中的FPC。可以理解，在本实施例中的电子设备中设置了包括上述实施例中的天线阵列的FPC，在天线阵列面积变化较小的情况下，可以保证电子设备一定的内部空间，有利于内部器件的合理安装，以及实现电子设备的小型化和轻薄化。同时使得电子设备的信号收发能力得到了扩展，实现了多种种类信号的处理能力，进而实现了前后代移动通信系统的平滑、稳定过渡，提供了良好的用户体验。
在一个可选实施例中，电子设备包括上述FPC电路板、射频系统和电池。射频系统可以包括各种现有的用于执行这些功能的电路元件，射频系统除包括上述天线阵列之外，还包括例如射频收发器、数字信号处理器、加密/解密芯片、用户身份模块(SIM)卡、存储器等等。射频系统可与各种网络如互联网、企业内部网、无线网络进行通讯或者通过无线网络与其他设备进行通讯。上述的无线网络可包括蜂窝式电话网、无线局域网或者城域网。上述的无线网络可以使用各种通信标准、协议及技术，包括但并不限于全球移动通信系统(Global System for Mobile Communication，简称为GSM)、增强型移动通信技术(Enhanced Data GSM Environment，简称为EDGE)，宽带码分多址技术(Wideband Code Division Multiple Access，简称为WCDMA)，码分多址技术(Code Division Access，简称为CDMA)、时分多址技术(Time Division Multiple Access，简称为TDMA)，无线保真技术(Wireless Fidelity，简称为Wi-Fi)(如美国电气和电子工程师协会标准IEEE 802.11a，IEEE 802.11b,IEEE802.11g和/或IEEE 802.11n)、网络电话(Voice over Internet Protocol，简称为VoIP)、全球微波互联接入(Worldwide Interoperability for Microwave Access，简称为Wi-Max)、其他用于邮件、即时通讯及短消息的协议，以及任何其他合适的通讯协议，甚至可包括那些当前仍未被开发出来的协议。上述电路板包括置于电池上侧的主板和置于电池下侧的副板，射频处理电路，射频收发器耦合连接射频处理电路，射频处理电路连接上述天线阵列。
在一个可选实施例中，上述电子设备包括移动终端或者基站。具体的移动终端可以是5G NR手机终端或其他5G NR终端设备，例如客户签约设备(Customer Premise Equipment，简称为CPE)或者便携式宽带无线装置(Mobile Wifi，简称为MIFI)。更具体地，在电子设备为手机时，手机除包括上述FPC电路板之外，还包括存储器、输入单元、显示单元、传感器、音频电路、扬声器、传声器、传输模块、摄像头、蓝牙模块等，其中，存储器包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器，用于存储软件程序以及模块；输入单元可用于接收输入的数字或字符信息，以及产生与用户设置以及功能控制有关的键盘、鼠标、操作杆、光学或者轨迹球信号输入；显示单元可以包括显示面板，可以采用液晶显示器 (Liquid Crystal Display，简称为LCD)、有机发光二极管 (Organic Light-Emitting Diode，简称为OLED)等形式来配置显示面板，用于显示由用户输入的信息或提供给用户的信息以及移动终端的各种图形用户接口，这些图形用户接口可以由图形、文本、图标、视频和其任意组合来构成；传感器包括比如光传感器、运动传感器以及其他传感器；音频电路可以将接收到的音频数据转换后的电信号，传输到扬声器；扬声器用于将音频数据转换为声音信号输出；传声器用于将收集的声音信号转换为电信号，由音频电路接收后转换为音频数据，再将音频数据输出处理器处理后，经射频系统以发送给比如另一终端；传输模块(例如Wi-Fi模块)可以帮助用户收发电子邮件、浏览网页和访问流式媒体等，它为用户提供了无线的宽带互联网访问；处理器是手机的控制中心，利用各种接口和线路连接整个手机的各个部分，通过运行或执行存储在存储器内的软件程序和/或模块，以及调用存储在存储器内的数据，执行手机的各种功能和处理数据，从而对手机进行整体监控。可选的，处理器可包括一个或多个处理核心；在一些实施例中，处理器可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。
在一个可选实施例中，电子设备包括移动终端时，天线装置位于该移动终端的顶部、底部或左右两侧，从而节省了移动终端的空间，增大了移动终端推广和应用力度。
应当理解的是，本发明的应用不限于上述的举例，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (20)

  1. 一种天线阵列，其中，包括：
    天线馈点（1）、第一天线走线（2）、第二天线走线（3）以及滤波器（4）；
    其中，所述第一天线走线（2）和所述第二天线走线（3）通过所述滤波器（4）连接；所述天线馈点（1）与所述第一天线走线（2）连接；所述滤波器（4）位于距离所述天线馈点（1）的预定范围内；所述第一天线走线（2）的工作频段为第一频段，所述第二天线走线（3）的工作频段为第二频段；所述滤波器（4）用于滤除所述第一频段中第三频段，使所述第二频段通过。
  2. 根据权利要求1所述的天线阵列，其中，包括：
    所述滤波器（4）为低通滤波器（5）或者为高通滤波器（6）。
  3. 根据权利要求2所述的天线阵列，其中，所述天线阵列还包括天线调谐器（7），所述天线调谐器（7）与所述第二天线走线（3）连接；所述第一频段包含所述第二频段，所述滤波器（4）为低通滤波器，所述第二频段低于所述第三频段。
  4. 根据权利要求3所述的天线阵列，其中，包括：
    所述第二频段为4G频段，所述第三频段为5G频段。
  5. 根据权利要求2所述的天线阵列，其中，所述天线阵列还包括天线调谐器（7’ ），所述天线调谐器（7’ ）与所述第二天线走线（3）连接；所述第一频段包含所述第二频段，所述滤波器（4）为高通滤波器，所述第二频段高于所述第三频段。
  6. 根据权利要求5所述的天线阵列，其中，包括：
    所述第二频段为5G频段，所述第三频段为4G频段。
  7. 根据权利要求1所述的天线阵列，其中，所述第一天线走线（2）和所述第二天线走线（3）的类型包括：
    单极天线、倒F天线、平面倒F天线、环形天线。
  8. 根据权利要求1所述的天线阵列，其中，包括：
    配置所述天线阵列为至少在高度和方位上引导窄波束。
  9. 一种FPC，其中，包括：
    天线馈点（1）、第一天线走线（2）、第二天线走线（3）以及滤波器（4）；
    其中，所述第一天线走线（2）和所述第二天线走线（3）通过所述滤波器（4）连接；所述天线馈点（1）与所述第一天线走线（2）连接；所述滤波器（4）位于距离所述天线馈点（1）的预定范围内；所述第一天线走线（2）的工作频段为第一频段，所述第二天线走线（3）的工作频段为第二频段；所述滤波器（4）用于滤除所述第一频段中第三频段，使所述第二频段通过。
  10. 根据权利要求9所述的FPC，其中，包括：
    所述滤波器（4）为低通滤波器（5）或者为高通滤波器（6）。
  11. 根据权利要求10所述的FPC，其中，所述天线阵列还包括天线调谐器（7），所述天线调谐器（7）与所述第二天线走线（3）连接；所述第一频段包含所述第二频段，所述滤波器（4）为低通滤波器，所述第二频段低于所述第三频段。
  12. 根据权利要求11所述的FPC，其中，包括：
    所述第二频段为4G频段，所述第三频段为5G频段。
  13. 根据权利要求12所述的FPC，其中，所述天线阵列还包括天线调谐器（7’ ），所述天线调谐器（7’ ）与所述第二天线走线（3）连接；所述第一频段包含所述第二频段，所述滤波器（4）为高通滤波器，所述第二频段高于所述第三频段。
  14. 根据权利要求13所述的FPC，其中，包括：
    所述第二频段为5G频段，所述第三频段为4G频段。
  15. 根据权利要求9所述的FPC，其中，所述第一天线走线（2）和所述第二天线走线（3）的类型包括：
    单极天线、倒F天线、平面倒F天线、环形天线。
  16. 根据权利要求9所述的FPC，其中，包括：
    配置所述天线阵列为至少在高度和方位上引导窄波束。
  17. 一种电子设备，其中，包括：
    天线馈点（1）、第一天线走线（2）、第二天线走线（3）以及滤波器（4）；
    其中，所述第一天线走线（2）和所述第二天线走线（3）通过所述滤波器（4）连接；所述天线馈点（1）与所述第一天线走线（2）连接；所述滤波器（4）位于距离所述天线馈点（1）的预定范围内；所述第一天线走线（2）的工作频段为第一频段，所述第二天线走线（3）的工作频段为第二频段；所述滤波器（4）用于滤除所述第一频段中第三频段，使所述第二频段通过。
  18. 根据权利要求17所述的电子设备，其中，包括：
    所述滤波器（4）为低通滤波器（5）或者为高通滤波器（6）。
  19. 根据权利要求18所述的电子设备，其中，所述电子设备包括移动终端或者基站。
  20. 根据权利要求19所述的电子设备，其中，所述电子设备包括移动终端时，所述天线阵列位于所述移动终端的顶部、底部或左右两侧。
PCT/CN2019/126462 2019-12-13 2019-12-19 一种天线阵列、 fpc 及电子设备 Ceased WO2021114340A1 (zh)

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