WO2008029662A1 - Transmission line resonator, high-frequency filter using the same, high-frequency module, and radio device - Google Patents
Transmission line resonator, high-frequency filter using the same, high-frequency module, and radio device Download PDFInfo
- Publication number
- WO2008029662A1 WO2008029662A1 PCT/JP2007/066589 JP2007066589W WO2008029662A1 WO 2008029662 A1 WO2008029662 A1 WO 2008029662A1 JP 2007066589 W JP2007066589 W JP 2007066589W WO 2008029662 A1 WO2008029662 A1 WO 2008029662A1
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- transmission line
- electrode
- type resonator
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- resonator according
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/08—Strip line resonators
- H01P7/084—Triplate line resonators
Definitions
- the present invention relates to a high frequency filter and a transmission line type resonator used for radio equipment such as a mobile phone and a digital TV tuner, and a high frequency module.
- FIG. 24 is an external perspective view of a high-frequency filter using a conventional transmission line type resonator.
- the conventional high-frequency filter 1 includes an external connection terminal 3, a half-wavelength transmission line type resonator 4, and a half-wavelength transmission line type resonator arranged in order on a dielectric sheet 2. 5 and an external connection terminal 6.
- the external connection terminal 3, the transmission line type resonator 4, the transmission line type resonator 5, and the external connection terminal 6 are capacitively coupled to each other.
- the element length of the transmission line type resonators 4 and 5 is determined by the dielectric constant of the dielectric sheet 2.
- Non-Patent Document 1 is known as prior art document information related to the invention of this application.
- Non-Patent Document 1 GL Matthaei, L. Young and EMT Jones, "MICRO WAVE FILTERS, IMPEDANCE— MATCHING NETWORKS, AND COUPLING STRUCTURES], Artech House (Norwood, MA), 1980 Disclosure of the invention
- the present invention provides a low-loss transmission line type resonator.
- the transmission line type resonator of the present invention comprises a laminated body in which a plurality of dielectric sheets are laminated, and a composite right-handed left-handed transmission line disposed between the plurality of dielectric sheets; And an external connection terminal disposed on the end face of the transmission line type resonator and connected to the composite right-handed left-handed transmission line.
- the transmission line type resonator of the present invention uses a composite right-handed left-handed transmission line, resulting in low loss.
- FIG. 1 is an external view of a transmission line type resonator according to a first embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the transmission line type resonator.
- FIG. 3A is an equivalent circuit diagram showing a minute section of a conventional right-handed transmission line (PRH).
- PRH right-handed transmission line
- FIG. 3B is an equivalent circuit diagram showing a minute section of an ideal left-handed transmission line (PLH).
- FIG. 3C is an equivalent circuit diagram showing a minute section of the composite right-handed left-handed transmission line (CRLH).
- FIG. 4 is a diagram showing the relationship between each frequency ⁇ , ⁇ , ⁇ and the phase propagation constant / 3.
- FIG. 5 is a diagram showing an example using meander lines as connection pattern electrodes.
- FIG. 6A is a view showing the upper surface of a dielectric sheet using a spiral coil as a connection pattern electrode.
- FIG. 6B is a diagram showing a top surface of the dielectric sheet disposed below the dielectric sheet of FIG. 6A.
- FIG. 7 is an exploded perspective view showing a modification of the transmission line type resonator.
- FIG. 8 is a cross-sectional view showing a modification of the transmission line type resonator.
- FIG. 9 is an exploded perspective view of a transmission line type resonator according to the second embodiment of the present invention.
- FIG. 10 is a cross-sectional view of the transmission line type resonator. 11] FIG. 11 is an exploded perspective view of the transmission line type resonator according to the third embodiment of the present invention.
- FIG. 12 is a sectional view of the transmission line type resonator.
- FIG. 13 is a diagram showing an example in which a stub electrode is provided in the middle of a via-hole electrode.
- FIG. 14A is an exploded perspective view showing a layer structure when non-shrink firing is performed in the transmission line type resonator.
- FIG. 14B is an external view before and after firing in the case of shrink firing in the transmission line type resonator.
- FIG. 14C is an external view before and after firing in the case of performing non-shrink firing in the transmission line type resonator.
- FIG. 15 is an enlarged cross-sectional view of a via-hole electrode of the transmission line type resonator. 16] FIG. 16 is an exploded perspective view of the transmission line type resonator according to the fourth embodiment of the present invention.
- FIG. 17 is a sectional view of the transmission line type resonator.
- FIG. 18 is a view showing a current distribution in the transmission line type resonator.
- FIG. 19 is an exploded perspective view showing a modification of the transmission line type resonator.
- FIG. 20 is an exploded perspective view of the high-frequency filter according to Embodiment 5 of the present invention.
- FIG. 21 is an exploded perspective view of the high-frequency filter according to Embodiment 6 of the present invention.
- FIG. 22A is an external view of the high-frequency module according to Embodiment 7 of the present invention.
- FIG. 22B is a conceptual circuit diagram of the high-frequency module.
- FIG. 23A is an external view of a wireless device according to Embodiment 8 of the present invention.
- Fig. 23B is a conceptual circuit diagram of the wireless device.
- FIG. 24 is an external perspective view of a high-frequency filter using a conventional transmission line type resonator.
- FIG. 1 shows an external view of a transmission line type resonator according to the first embodiment.
- a transmission line type resonator 7 includes a multilayer body 8, and an external connection terminal 9 and a ground electrode 10 disposed on the end face of the multilayer body 8.
- FIG. 2 shows an exploded oblique view of the composite right-handed left-handed transmission line type resonator in the first embodiment. A view is shown.
- the composite right-handed left-handed transmission line type resonator 7 is formed by laminating a plurality of dielectric sheets 11 made of a low-temperature co-fired ceramic or a resin plate.
- a plurality of line electrodes 12 are linearly arranged on a certain dielectric sheet 11 with an arbitrary gap between each other.
- a ground pattern electrode 16 is connected to the line electrode 12 via an inductive connection pattern electrode 13 having a line width smaller than that of the line electrode 12.
- the ground pattern electrode 16 is connected to the ground electrode 10.
- a plurality of capacitive electrodes 14 are disposed so as to face the line electrode 12.
- Each capacitive electrode 14 is disposed so as to straddle two adjacent line electrodes 12, and the adjacent line electrodes 12 are capacitively coupled to each other.
- the input / output pattern electrode 15 is arranged so as to be capacitively coupled to the outermost line electrode 12 among the plurality of line electrodes 12. The input / output pattern electrode 15 is connected to the external connection terminal 9.
- shield pattern electrodes 17 are arranged on the lower surface of the uppermost dielectric sheet 11 and the upper surface of the lowermost dielectric sheet 11 of the laminate 8, and these two shield pattern electrodes 17 are also connected to the ground electrode 10. It is connected.
- the composite right-handed left-handed transmission line according to the present invention includes at least the ground electrode 10, the line electrode 12, the connection pattern electrode 13, and the input / output pattern electrode 15.
- FIG. 3A is an equivalent circuit diagram showing a minute section of a conventional right-handed transmission line (PRH).
- PRH right-handed transmission line
- inductor L is connected in series and C force S is connected in parallel.
- FIG. 3B is a diagram showing an equivalent circuit of a minute section of an ideal left-handed transmission line (PLH).
- PLL left-handed transmission line
- FIG. 3C is a diagram showing a minute section of the composite right-handed left-handed transmission line (CRLH) as an equivalent circuit.
- CTLH composite right-handed left-handed transmission line
- Figure 4 shows the relationship of 0 0 sh se constant / 3.
- FIG. 4 is a diagram showing the relationship between each frequency ⁇ 0, ⁇ sh, ⁇ se and phase propagation constant (3 p.
- the vertical axis is the angular frequency
- the horizontal axis is the propagation phase constant.
- PRH rising from the lower left to the upper right means that the higher the frequency, the more the phase rotates
- PLH lowering the upper right to the lower left means that the lower the frequency, the more the phase.
- the lower the frequency the shorter the wavelength.
- any frequency on the characteristic curve of the composite right-handed left-handed transmission line (CRLH) may be used, but in the region where / 3 is negative,
- the length of the transmission line type resonator and the wavelength are irrelevant, and theoretically, the resonator length can be shortened as much as possible. This is called a zero order resonator. In the present invention, this is the most preferable resonance mode. At this time, the resonance frequency is determined by the parallel resonance frequency c.
- the loss generally includes a resistance loss due to the conductor resistance of the line and a dielectric loss due to tan ⁇ of the dielectric.
- the resistance loss of the line was dominant.
- the line In the case of left-handed transmission lines, As shown, the line consists of a series connection of series capacitors C, and the resistance in this area
- Parallel IJ Inductor L still has resistance, but in particular 0
- the parallel circuit is used at the parallel resonant frequency where the impedance is infinite, so it is hardly affected by the resistance loss.
- the 0th-order order resonator can obtain a higher unloaded Q value than the conventional right-handed transmission line type resonator, as long as the line length can be shortened dramatically. That is, low loss can be achieved.
- all the thicknesses of the dielectric sheet 11 are standardized to substantially the same thickness. Thereby, since the thickness of all the dielectric sheets 11 is standardized, manufacture is easy and cost can be reduced.
- the dielectric sheet 11 between the capacitive electrode 14 and the line electrode 12 is N (N is a natural number)
- the dielectric between the upper shield pattern electrode 17 and the capacitive electrode 14 The body sheet 11 is M (M is a natural number)
- the dielectric sheet 11 between the line electrode 12 and the lower shield pattern electrode 17 is M ′ (M ′ is a natural number)
- M, M ′> N It is desirable to reduce the loss.
- FIG. 5 shows an example in which the meander line 21 is used as the connection pattern electrode 13.
- the meander line refers to a line having a plurality of curved portions as shown in FIG. 5, for example.
- 6A and 6B are examples in which a spiral coil 22 is used as the connection pattern electrode 13.
- 6A shows the upper surface of the predetermined dielectric sheet 11
- FIG. 6B shows the upper surface of the dielectric sheet 11 disposed under the dielectric sheet 11.
- the spiral coil 22 is connected by a via hole electrode 23.
- FIG. 7 is an exploded perspective view showing a modification of the first embodiment.
- the capacitor electrode 14 is provided in two layers above and below the line electrode 12.
- FIG. 8 shows a cross-sectional view taken along line 8-8 of the modification of the first embodiment shown in FIG. It is.
- the capacitor electrode 14 is not necessarily provided on the upper and lower two layers of the line electrode 12 but may be a plurality of two or more layers.
- the arrangement of the external connection terminals 9 is not necessarily limited to the end surface of the laminate 8. Instead of or in addition to the end surface of the laminate 8, the upper surface or the lower surface of the laminate 8 or the upper and lower surfaces of the laminate 8. You may arrange in both. By arranging the external connection terminals 9 in this way, surface mounting becomes easy.
- FIG. 9 is an exploded perspective view of the composite right-handed left-handed transmission line type resonator in the second embodiment.
- FIG. 10 shows a cross-sectional view at 10-10.
- the line electrode 12 formed by the capacitor electrode 14 is arranged so as to be shifted in a different manner over two layers. In this way, capacitive coupling can be performed between the line electrodes 12 facing each other.
- the composite right-handed left-handed transmission line type resonator 7 can be further reduced in size.
- FIG. 11 is an exploded perspective view of the composite right-handed left-handed transmission line type resonator 7 according to the third embodiment.
- FIG. 12 shows a cross-sectional view at 12-12.
- the line electrode 1 is connected via the via hole electrode 18.
- FIG. 13 shows an example in which a stub electrode is provided in the middle of the via hole electrode 18.
- the firing method of the laminate 8 includes shrinkage firing and non-shrinkage firing.
- FIG. 14A is an exploded perspective view showing the layer structure when performing non-shrink baking. The constraining layer 24 is adhered to the uppermost layer and the lowermost layer of the laminated dielectric sheets 11.
- FIG. 14B is a view showing the appearance of the laminate 25 before firing (left side) and after firing (right side) in the case of shrink firing. In the case of shrink firing, it shrinks by about 15% in all three dimensions.
- non-shrinkage firing as shown in FIG. 14C, the appearance before and after firing does not shrink in the plane direction, but shrinks by about 50% only in the thickness direction. Therefore, non-shrinkage firing causes variations in the thickness direction instead of providing in-plane accuracy. Therefore, the via-hole electrode 18 needs to be designed in consideration of the variation in the thickness direction.
- the constraining layer 24 is removed after firing.
- FIG. 15 When the cross section of the via-hole electrode 18 is observed in detail, an enlarged cross-sectional view as shown in FIG. 15 has a tapered shape that narrows from the top to the bottom in each dielectric sheet 11. It is necessary to consider the design.
- FIG. 16 is an exploded perspective view of the composite right-handed left-handed transmission line type resonator in the fourth embodiment.
- the difference from the first embodiment is that a segmented line electrode 19 is used instead of the line electrode 12.
- FIG. 17 shows a cross-sectional view taken along line 17-17.
- FIG. 18 illustrates the current distribution in the split line electrode 19. Normally, high-frequency current is concentrated at both ends of the transmission line electrode. By dividing the force electrode, it can be seen that the current also flows through the center electrode and the current concentration is relaxed. Therefore, the above configuration reduces the resistance loss of the current, and the high no-load Q A value will be obtained.
- FIG. 19 is an exploded perspective view showing a modification of the fourth embodiment.
- the difference from the fourth embodiment is that the capacitor electrode 14 is replaced with a divided capacitor electrode 20.
- the current concentration of the current flowing through the capacitor electrode can be relaxed, so the resistance S can be further reduced by reducing the resistance loss.
- FIG. 20 is an exploded perspective view of a high-frequency filter using a composite right-handed left-handed transmission line type resonator according to the fifth embodiment.
- the composite right-handed left-handed transmission line type resonator 7 described in the first embodiment is stacked in two stages in the vertical direction, and the two resonators are electromagnetically coupled to form the high frequency filter 26. To do.
- the method of coupling the resonators is not limited to this, and fi may be used by using a separately provided coupling circuit (not shown).
- the number of resonators to be coupled is not limited to two, but can be three, four, five or more.
- FIG. 21 is an exploded perspective view of a high-frequency filter using a composite right-handed left-handed transmission line type resonator according to the sixth embodiment.
- the method of coupling the resonators is not limited to this, and fi may be used by using a separately provided coupling circuit (not shown).
- the number of resonators to be coupled is not limited to two, but can be three, four, five or more.
- the characteristics of the composite right-handed left-handed transmission line type resonator 7 described in the first embodiment can be further utilized to realize a further compact and low-loss high-frequency filter.
- FIG. 22A is an external view of the high-frequency module
- FIG. 22B is a conceptual circuit diagram of the high-frequency module.
- a tunable filter module in which a varactor diode 30 is connected to the high frequency filter 26 is illustrated.
- the high frequency module 29 includes a high frequency filter 26, a varactor diode 30 connected between the high frequency filter 26 and the ground, and a chip inductor 31 connected between the varactor diode 30 and the control terminal.
- a plurality of varactor diodes 30 may be connected to the high frequency filter 26.
- the varactor diode 30 and the chip inductor 31 are mounted on the upper surface of the multilayer body 8.
- FIG. 23A is an external view of the wireless device
- FIG. 23B is a conceptual circuit diagram of the wireless device.
- the wireless device includes a high frequency filter 29, a low noise amplifier 33, a high frequency filter in order from the input terminal side. It has an inverter 29 and a mixer 34. By using the high frequency filter 29, it is possible to provide a very small, multifunctional and high performance wireless device.
- a tuner of a digital television is realized with such a configuration, a strong electric field interference signal can be removed by a tunable filter, and a low noise amplifier and a mixer can be protected from distortion power caused by the interference signal. That power S. As a result, the current in those circuits can be reduced.
- the transmission line type resonator of the present invention has low loss, it is useful for wireless devices such as portable terminals.
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- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Description
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Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/438,840 US8222975B2 (en) | 2006-08-31 | 2007-08-28 | Transmission line resonator, high-frequency filter using the same, high-frequency module, and radio device |
| EP07793041A EP2058897A4 (en) | 2006-08-31 | 2007-08-28 | TRANSMISSION CHANNEL RESONATOR, HIGH FREQUENCY FILTER THEREWITH, HIGH FREQUENCY MODULE AND RADIO |
| CN2007800323504A CN101512830B (zh) | 2006-08-31 | 2007-08-28 | 传输线型谐振器和使用它的高频滤波器、高频模块及无线机器 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-235243 | 2006-08-31 | ||
| JP2006235243A JP4992345B2 (ja) | 2006-08-31 | 2006-08-31 | 伝送線路型共振器と、これを用いた高周波フィルタ、高周波モジュールおよび無線機器 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008029662A1 true WO2008029662A1 (en) | 2008-03-13 |
Family
ID=39157095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/066589 Ceased WO2008029662A1 (en) | 2006-08-31 | 2007-08-28 | Transmission line resonator, high-frequency filter using the same, high-frequency module, and radio device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8222975B2 (ja) |
| EP (1) | EP2058897A4 (ja) |
| JP (1) | JP4992345B2 (ja) |
| CN (1) | CN101512830B (ja) |
| WO (1) | WO2008029662A1 (ja) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008182598A (ja) * | 2007-01-25 | 2008-08-07 | Murata Mfg Co Ltd | 左手系伝送線路、ハイパスフィルタおよび通信装置 |
| JP2011055321A (ja) * | 2009-09-03 | 2011-03-17 | Yazaki Corp | 左手/右手系複合伝送路 |
| JP2011071577A (ja) * | 2009-09-24 | 2011-04-07 | Yazaki Corp | 左手/右手系複合伝送路 |
| US20120138600A1 (en) * | 2009-08-20 | 2012-06-07 | Panasonic Corporation | Electromagnetic wave heating device |
| WO2020162379A1 (ja) * | 2019-02-08 | 2020-08-13 | 双信電機株式会社 | 共振器及びフィルタ |
| JPWO2022059221A1 (ja) * | 2020-09-17 | 2022-03-24 |
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| US8290445B2 (en) * | 2007-08-10 | 2012-10-16 | Panasonic Corporation | Electronic device, and information apparatus, communications apparatus, AV apparatus, and mobile apparatus using the same |
| WO2009120488A1 (en) * | 2008-03-25 | 2009-10-01 | Rayspan Corporation | Advanced active metamaterial antenna systems |
| KR101451365B1 (ko) | 2008-08-08 | 2014-10-21 | 금오공과대학교 산학협력단 | 가변 대역저지필터 |
| JP5463812B2 (ja) * | 2009-09-10 | 2014-04-09 | ソニー株式会社 | 半導体装置および通信装置 |
| JP5504944B2 (ja) * | 2010-02-09 | 2014-05-28 | 株式会社豊田中央研究所 | アンテナ装置 |
| US8994470B2 (en) * | 2011-04-28 | 2015-03-31 | Lenovo Innovations Limited (Hong Kong) | Circuit substrate having noise suppression structure |
| KR101984811B1 (ko) * | 2012-10-23 | 2019-06-03 | 삼성전자주식회사 | 무선 전력 전송 시스템용 자계조절 3차원 플렉서블 공진기 |
| US11082014B2 (en) * | 2013-09-12 | 2021-08-03 | Dockon Ag | Advanced amplifier system for ultra-wide band RF communication |
| CN103956313B (zh) * | 2014-05-07 | 2016-05-25 | 电子科技大学 | 小型化功率增益均衡器 |
| CN105225906B (zh) * | 2015-09-10 | 2017-03-01 | 电子科技大学 | 一种基于微带缺陷结构的小型化增益均衡器 |
| CN113659297A (zh) * | 2021-08-16 | 2021-11-16 | 国网江苏省电力有限公司常州供电分公司 | 大功率微波均衡器 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008182598A (ja) * | 2007-01-25 | 2008-08-07 | Murata Mfg Co Ltd | 左手系伝送線路、ハイパスフィルタおよび通信装置 |
| US20120138600A1 (en) * | 2009-08-20 | 2012-06-07 | Panasonic Corporation | Electromagnetic wave heating device |
| JP2011055321A (ja) * | 2009-09-03 | 2011-03-17 | Yazaki Corp | 左手/右手系複合伝送路 |
| JP2011071577A (ja) * | 2009-09-24 | 2011-04-07 | Yazaki Corp | 左手/右手系複合伝送路 |
| WO2020162379A1 (ja) * | 2019-02-08 | 2020-08-13 | 双信電機株式会社 | 共振器及びフィルタ |
| JP2020129740A (ja) * | 2019-02-08 | 2020-08-27 | 双信電機株式会社 | 共振器及びフィルタ |
| US12323129B2 (en) | 2019-02-08 | 2025-06-03 | Soshin Electric Co., Ltd. | Resonator and filter |
| JPWO2022059221A1 (ja) * | 2020-09-17 | 2022-03-24 | ||
| JP7317244B2 (ja) | 2020-09-17 | 2023-07-28 | 三菱電機株式会社 | 給電線路及びそれを用いたアンテナ装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2058897A1 (en) | 2009-05-13 |
| CN101512830A (zh) | 2009-08-19 |
| JP2008060901A (ja) | 2008-03-13 |
| US20100007445A1 (en) | 2010-01-14 |
| CN101512830B (zh) | 2012-08-22 |
| JP4992345B2 (ja) | 2012-08-08 |
| EP2058897A4 (en) | 2009-07-15 |
| US8222975B2 (en) | 2012-07-17 |
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