WO2016056377A1 - 分波装置 - Google Patents
分波装置 Download PDFInfo
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- WO2016056377A1 WO2016056377A1 PCT/JP2015/076607 JP2015076607W WO2016056377A1 WO 2016056377 A1 WO2016056377 A1 WO 2016056377A1 JP 2015076607 W JP2015076607 W JP 2015076607W WO 2016056377 A1 WO2016056377 A1 WO 2016056377A1
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- inductor
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- parallel arm
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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 devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/0538—Constructional combinations of supports or holders with electromechanical or other electronic elements
- H03H9/0566—Constructional combinations of supports or holders with electromechanical or other electronic elements for duplexers
- H03H9/0576—Constructional combinations of supports or holders with electromechanical or other electronic elements for duplexers including surface acoustic wave [SAW] devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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
Definitions
- the present invention relates to a demultiplexer, and more particularly, to a demultiplexer including a plurality of filter devices and inductors.
- a demultiplexer such as a duplexer that uses a surface acoustic wave filter (SAW (Surface Acoustic Wave) filter) to separate a transmission signal and a reception signal according to frequency is widely used.
- SAW Surface Acoustic Wave
- a ladder filter in which a plurality of surface acoustic wave resonators are connected in a ladder shape is used to widen a pass band that is a frequency band through which a transmission signal and a reception signal pass.
- a configuration in which a plurality of inductors are added to the filter is used to match the impedance with the antenna for transmission and reception and to adjust the passband characteristics of each filter.
- Patent Document 1 discloses an antenna duplexer including first to third filters electrically connected to an antenna and having passbands having different frequencies from each other. A configuration is disclosed in which an inductor for impedance matching is provided between the potential and the potential.
- Patent Document 2 discloses an antenna for matching an antenna and an inductor for adjusting the characteristics of a transmission filter (extension inductor) in a duplexer that separates a transmission signal and a reception signal. A configuration in which a meander line is formed in a laminated substrate is disclosed.
- the magnetic field generated by the inductor is orthogonalized to reduce the influence of electromagnetic fields acting on each other, thereby improving the isolation characteristics. is doing.
- a communication device such as a mobile phone
- the present invention has been made in view of the above problems, and an object of the present invention is to improve isolation characteristics by improving attenuation characteristics outside the pass band in a demultiplexer that separates signals in a plurality of different pass bands. It is to be.
- the branching device includes first to fourth signal terminals, first and second filters, and first to third inductors.
- the first filter is connected to the first to third signal terminals and has first and second passbands different from each other.
- the second filter is connected to the first and fourth signal terminals and has a third passband different from the first and second passbands.
- the first inductor is connected between the first signal terminal and the ground potential.
- the second inductor is connected between the first filter and the ground potential.
- the third inductor is connected between the second filter and the ground potential.
- the first inductor is inductively coupled to the second inductor and the third inductor. Each of the distance between the first inductor and the second inductor and the distance between the first inductor and the third inductor is shorter than the distance between the second inductor and the third inductor. .
- the first inductor is disposed so as to be substantially the same distance from the second inductor and the third inductor.
- the first inductor has a coupling coefficient between the first inductor and the second inductor and a coupling coefficient between the first inductor and the third inductor of 0.04 or more, respectively. It arrange
- the first filter has a first passband, a first ladder-type filter section including a first series arm resonator and a first parallel arm resonator, and a second passband. And a longitudinally coupled resonator type filter.
- the second filter has a third passband, and includes a second ladder type filter unit including a second series arm resonator and a second parallel arm resonator.
- the first filter includes a first series arm resonator and a first parallel arm resonator.
- the second filter includes a second series arm resonator and a second parallel arm resonator.
- the second inductor is connected between the first parallel arm resonator and the ground potential, and the third inductor is connected between the second parallel arm resonator and the ground potential.
- the first filter includes a plurality of first parallel arm resonators
- the second filter includes a plurality of second parallel arm resonators.
- the second inductor is connected between at least two parallel arm resonators of the plurality of first parallel arm resonators and a ground potential.
- the third inductor is connected between at least two parallel arm resonators of the plurality of second parallel arm resonators and a ground potential.
- the branching device further includes a fifth signal terminal.
- the first filter is connected to the first and second signal terminals and has a first pass band, and is connected to the first and third signal terminals and the second pass band.
- the 2nd filter part which has these.
- the second filter is connected to the first and fourth signal terminals and has a third pass band, and is connected to the first and fifth signal terminals and the third pass band.
- a fourth filter unit having a fourth passband different from the first passband.
- the first to fourth signal terminals are provided on the circuit board.
- the first filter is included in a first filter chip mounted on the circuit board.
- the second filter is included in a second filter chip mounted on the circuit board.
- the first inductor is included in an inductor chip mounted on the circuit board. At least a part of the second inductor is disposed on the circuit board so as to overlap the first filter chip when the circuit board is viewed in plan. At least a part of the third inductor is disposed on the circuit board so as to overlap the second filter chip when the circuit board is viewed in plan.
- the branching device of the present invention it is possible to improve the isolation characteristic by improving the attenuation characteristic outside the passband in the branching device.
- FIG. 1 is a schematic circuit diagram of a branching device according to Embodiment 1 of the present invention.
- FIG. 3 is a diagram illustrating a first example of a schematic arrangement on a circuit board for each element of the branching device of FIG. 1. It is the 1st figure for explaining the relation between the inductive coupling of an inductor and the isolation characteristic about the 1st band. It is a 2nd figure for demonstrating the relationship between the inductive coupling of an inductor and the isolation characteristic about a 1st band. It is a 1st figure for demonstrating the relationship between the inductive coupling of an inductor and the isolation characteristic about a 2nd band.
- FIG. 10 is a diagram illustrating a second example of a schematic arrangement on a circuit board for each element of the branching device of FIG. 1.
- FIG. 5 is a schematic circuit diagram of a branching device according to a second embodiment. It is a figure which shows schematic arrangement
- FIG. 6 is a schematic circuit diagram of a branching device according to a third embodiment.
- FIG. 1 is a schematic circuit diagram of a demultiplexer 1 according to Embodiment 1 of the present invention.
- a demultiplexer 1 is a so-called triplexer that includes a duplexer 100 and a filter 200 each electrically connected to an antenna 10 at an antenna terminal T1.
- the antenna terminal T1 constituting the first signal terminal is connected to the ground potential via the inductor L1 included in the inductor chip 50.
- the inductor L1 is used to match the impedances of the branching device 1 and the antenna 10, and constitutes a first inductor.
- the duplexer 100 constituting the first filter includes a transmission filter unit 110 having a first pass band (for example, 704 to 716 MHz) and a second pass band (for example, 734 to 756 MHZ) different from the first pass band. And a reception filter unit 120 having ().
- the filter 200 includes a transmission filter unit 210 having a third pass band (for example, 777 to 787 MHz) different from the first and second pass bands.
- the transmission filter unit 110 is a ladder-type filter connected between the antenna terminal T1 and the transmission terminal T2, and filters the transmission signal received at the transmission terminal T2 with the ladder-type filter from the antenna terminal T1. Output.
- the transmission filter unit 110 includes series arm resonators S11 to S14 and parallel arm resonators P11 to P13 connected in series between the antenna terminal T1 and the transmission terminal T2.
- the one end of the parallel arm resonator P11 is connected to the connection node of the series arm resonators S11 and S12, and the other end is connected to the ground potential via the inductor L11.
- One end of the parallel arm resonator P12 is connected to the connection node of the series arm resonators S12 and S13, and the other end is connected to the ground potential via the inductor L12 constituting the second inductor.
- One end of the parallel arm resonator P13 is connected to a connection node of the series arm resonators S13 and S14, and the other end is connected to a connection node of the parallel arm resonator P12 and the inductor L12. That is, the parallel arm resonator P13 is also connected to the ground potential via the inductor L12.
- the reception filter unit 120 is a balanced filter connected between the reception terminal T3 and the antenna terminal T1 constituting the second and third signal terminals, and more specifically, a longitudinally coupled resonator type. An elastic wave filter is used.
- the reception filter unit 120 includes a surface acoustic wave resonator S15 and longitudinally coupled resonator type acoustic wave filters 121 and 122.
- the receiving terminals T3 are a pair of balanced signal terminals that transmit signals having opposite phases to each other.
- the longitudinally coupled resonator type acoustic wave filter 121 and the longitudinally coupled resonator type acoustic wave filter 122 are vertically connected to each other and have a balance-unbalance conversion function.
- the reception filter unit 120 converts an unbalanced signal received by the antenna 10 via the surface acoustic wave resonator S15 into a balanced signal and outputs the balanced signal to the receiving terminal T3.
- the reception filter unit 120 can receive both a reception signal of a band (Band 17) in which the transmission filter unit 110 is used and a reception signal of a band (Band 13) in which the transmission filter unit 210 described later is used. Functions as a filter.
- the transmission filter unit 210 included in the filter 200 constituting the second filter is a ladder type filter connected between the transmission terminal T4 constituting the fourth signal terminal and the antenna terminal T1, and is a transmission terminal.
- the transmission signal received at T4 is filtered and output from the antenna terminal T1.
- Transmission filter section 210 includes series arm resonators S21 to S24 and parallel arm resonators P21 to P23 connected in series between antenna terminal T1 and transmission terminal T4.
- the one end of the parallel arm resonator P21 is connected to the connection node of the series arm resonators S22 and S23, and the other end is connected to the ground potential via the inductor L21.
- One end of the parallel arm resonator P22 is connected to a connection node provided in the series arm of the series arm resonators S23 and S24, and the other end is connected to the ground potential via the inductor L22 constituting the third inductor. It is connected.
- One end of the parallel arm resonator P23 is connected to the series arm connected to the transmission terminal T4, and the other end is connected to a connection node between the parallel arm resonator P22 and the inductor L22. That is, the parallel arm resonator P23 is also connected to the ground potential via the inductor L22.
- serial arm resonators and parallel arm resonators in the transmission filter units 110 and 210 and the connection mode are not limited to those illustrated in FIG. 1, and are appropriately selected according to the passband to be used.
- Inductors (L11, L12, L21, L22) connected between a parallel arm resonator and a ground potential in ladder filters such as the transmission filter units 110 and 210 are generally “extension inductors (extension coils)”. And used to serialize the load capacitance in the oscillation circuit.
- inductors connected between a plurality of parallel arm resonators and the ground potential such as inductors L12 and L22, are also referred to as “polar inductors (polar coils)” and are attenuated to a desired frequency. It is used to improve the attenuation in the high frequency range by providing a pole.
- FIG. 2 is a diagram showing a schematic arrangement on the circuit board 20 for each element of the demultiplexing device shown in FIG.
- filter chip 30 constituting the first filter chip including duplexer 100
- filter chip 40 constituting the second filter chip including filter 200
- inductor L1 And an inductor chip 50 including the same.
- the filter chip 30 and the inductor chip 50 are electrically connected by the pattern wiring EL1 on the circuit board 20, and the filter chip 40 and the inductor chip 50 are electrically connected by the pattern wiring EL2 on the circuit board 20.
- the inductor chip 50 is electrically connected to the antenna terminal T1 by the pattern wiring EL3.
- the pattern wiring EL1, the pattern wiring EL2, and the pattern wiring EL3 are connected at a common connection point.
- One end of the filter chip 30, one end of the filter chip 40, and one end of the inductor chip 50 are connected to the antenna terminal T1 through a common connection point.
- the other end of the inductor chip 50 is connected to the ground potential.
- the polarized inductor L12 connected to the transmission filter unit 110 of the duplexer 100 and the polarized inductor L22 connected to the transmission filter unit 210 of the filter 200 are formed on the circuit board 20 by circulating pattern wiring. Yes.
- the inductors L12 and L22 are arranged at positions where at least part or all of the inductors L12 and L22 overlap with the filter chips 30 and 40, respectively, when the circuit board 20 is viewed in plan. Thereby, a substantial mounting area on the circuit board 20 can be saved.
- Such a duplexer having a two-band filter may be used for mobile devices such as mobile phones and smartphones, and therefore it is desirable to make it as small as possible.
- the inductors L12 and L22 of the transmission filter units 110 and 210 are disposed close to the inductor chip 50 including the inductor L1, thereby causing the inductor L1. And the inductor L12, and between the inductor L1 and the inductor L22, the inductors can be inductively coupled to each other.
- the inductor chip 50 is arranged between the two filter chips 30 and 40 on the circuit board 20, and the inductors L21 and L22 and the inductor L1 are arranged close to each other.
- inductive coupling is proportional to the coupling coefficient ⁇ , and the coupling coefficient ⁇ increases as the distance between the inductors decreases. Therefore, in order to improve the isolation characteristics, it is desirable to arrange the inductors L21 and L22 as close as possible to the inductor chip 50.
- the distance between the inductor chip 50 and the inductor L12 is D1
- the distance between the inductor chip 50 and the inductor L22 is D2
- the distance between the inductors L12 and L22 is Assuming D3, it is preferable that D1 and D2 are smaller than D3 (D1 ⁇ D3 and D2 ⁇ D3), and that D1 ⁇ D2.
- the isolation characteristics of the branching device according to the first embodiment having the arrangement as described in FIG. 2 will be described.
- the polarized inductor on the other band side is sufficiently separated from the inductor chip 50 so that it is not inductively coupled, and the polarized inductor in the band is not inductively coupled.
- the isolation characteristics are shown. 3 to 7, the vertical axis represents the insertion loss [dB], and the horizontal axis represents the frequency [MHz]. In FIG. 8, the vertical axis represents the insertion loss [dB], and the horizontal axis represents the coupling coefficient ⁇ .
- FIG. 3 and 4 are graphs for explaining the relationship between the coupling coefficient and the isolation characteristic for the first band (Band 17) on the transmission filter unit 110 side.
- the coupling coefficient ⁇ is in the range of 0.04 to 0.07. It is desirable to set parameters so that
- the duplexer that can transmit and receive in two bands as in the first embodiment, by inductively coupling the polarized inductor of each transmission filter unit with the matching inductor on the input side Therefore, it is possible to improve the isolation characteristics of the reception side passband in the common reception filter unit.
- the arrangement of the polarized inductors on the circuit board is not limited to the arrangement shown in FIG. 2, and other arrangements are possible as long as they can be inductively coupled with the input-side inductor in the inductor chip.
- FIG. 9 is an example in which the entire inductor L22 is arranged so as to overlap the filter chip 40 in the circuit on the transmission filter unit 210 side.
- FIG. 10 is a schematic circuit diagram of the branching apparatus 1A according to the second embodiment.
- an individual reception filter unit 220 is provided for the band of the transmission filter unit 210 of the filter 200 in the duplexer 1 shown in FIG. 1, and the duplexer 200A is configured by the transmission filter unit 210 and the reception filter unit 220. Is formed. In FIG. 10, description of elements that overlap those in FIG. 1 will not be repeated.
- reception filter section 220 in duplexer 200A is a balanced filter that constitutes a third filter connected between reception terminal T5 that constitutes the fifth signal terminal and antenna terminal T1. More specifically, the reception filter unit 220 is composed of a longitudinally coupled resonator type acoustic wave filter.
- the reception filter unit 220 includes a surface acoustic wave resonator S25 and longitudinally coupled resonator type acoustic wave filters 221 and 222.
- the longitudinally coupled resonator type acoustic wave filter 221 and the longitudinally coupled resonator type acoustic wave filter 222 are longitudinally connected to each other and have a balance-unbalance conversion function.
- the reception filter unit 220 converts an unbalanced signal received by the antenna 10 through the surface acoustic wave resonator S25 into a balanced signal and outputs the balanced signal to the receiving terminal T5.
- the pass band of the reception filter unit 220 of the duplexer 200A may be set to the same pass band as the pass band of the reception filter unit 120 of the duplexer 100, or may be set to a different pass band. Also good.
- FIG. 11 is a diagram showing a schematic arrangement on the circuit board 20 for each element of the branching device of FIG.
- a filter chip 40A including a duplexer 200A is mounted instead of the filter chip 40 in FIG. 2 of the first embodiment.
- the filter chip 30 and the filter chip 40A are arranged symmetrically with respect to the inductor chip 50, and the polarized inductors L12 and L22 are arranged close to each other so as to be inductively coupled to the inductor L1 in the inductor chip 50. ing.
- the isolation characteristics of the reception-side passband are obtained by inductively coupling the polarized inductor of each duplexer with the input-side inductor. Can be improved.
- the duplexer 100 according to the first embodiment is replaced with a triplexer 100A having two transmission filter units 110 and 110A. That is, the demultiplexing device 1B includes transmission filter units 110, 110A, 210 corresponding to three different bands having different pass bands, and a common reception filter unit 120.
- each of the transmission inductors 110, 110A, and 210 is inductively coupled to the antenna-side inductor L1 by inductively coupling the polarized inductors L12, L12A, and L22. It is possible to improve the isolation characteristics of the reception-side passband in the band.
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Abstract
Description
図1は本発明の実施の形態1に係る分波装置1の概略回路図である。図1を参照して、分波装置1は、各々がアンテナ端子T1においてアンテナ10と電気的に接続されたデュプレクサ100およびフィルタ200を備える、いわゆるトリプレクサである。
回路基板上における有極インダクタの配置については、図2で示した配置には限定されず、インダクタチップ内の入力側インダクタと誘導結合できれば、他の配置とすることも可能である。
実施の形態1においては、2つのバンドの受信側のフィルタを共通化した構成の場合について説明した。実施の形態2においては、それぞれのバンドで受信側フィルタが設けられる、2つのデュプレクサ(クワッドプレクサ)を採用した構成の例について説明する。
実施の形態3における分波装置1Bは、実施の形態1におけるデュプレクサ100が、2つの送信フィルタ部110,110Aを有するトリプレクサ100Aに置き換わったものとなっている。すなわち、分波装置1Bは、互いに異なる通過帯域を有する3つの異なるバンドに対応した送信フィルタ部110,110A,210と、共通の受信フィルタ部120とを有する。
10 アンテナ、
20 回路基板、
L1,L11,L11A,L12,L12A,L21,L22 インダクタ、
30,40,40A フィルタチップ、
50 インダクタチップ、
100,200A デュプレクサ、
100A トリプレクサ、
110,110A,210 送信フィルタ部、
120,220 受信フィルタ部、
121,122,221,222 縦結合共振子型弾性波フィルタ、
S15,S25 弾性表面波共振子、
200 フィルタ、
EL1~EL3 パターン配線、
P11~P13,P21~P23 並列腕共振子、
S11~S14,S21~S24 直列腕共振子、
T1 アンテナ端子、
T2,T4 送信用端子、
T3,T5 受信用端子。
Claims (9)
- 第1~第4の信号端子と、
前記第1~第3の信号端子に接続され、互いに異なる第1および第2の通過帯域を有する第1のフィルタと、
前記第1および第4の信号端子に接続され、前記第1および第2の通過帯域とは異なる第3の通過帯域を有する第2のフィルタと、
前記第1の信号端子と接地電位との間に接続された第1のインダクタと、
前記第1のフィルタと接地電位との間に接続された第2のインダクタと、
前記第2のフィルタと接地電位との間に接続された第3のインダクタとを備え、
前記第1のインダクタは、前記第2のインダクタおよび前記第3のインダクタと互いに誘導結合し、
前記第1のインダクタと前記第2のインダクタとの間の距離および前記第1のインダクタと前記第3のインダクタとの間の距離の各々は、前記第2のインダクタと前記第3のインダクタとの間の距離よりも短い、分波装置。 - 前記第1のインダクタは、前記第2のインダクタおよび前記第3のインダクタから略同じ距離となるように配置される、請求項1に記載の分波装置。
- 前記第1のインダクタは、前記第1のインダクタと前記第2のインダクタとの間の結合係数、および、前記第1のインダクタと前記第3のインダクタとの間の結合係数が、それぞれ0.04以上かつ0.07以下の範囲内となるように配置される、請求項1または2に記載の分波装置。
- 前記第1のフィルタは、
前記第1の通過帯域を有し、第1の直列腕共振子と第1の並列腕共振子とを含む第1のラダー型フィルタ部と、
前記第2の通過帯域を有する縦結合共振子型フィルタとを含む、請求項1~3のいずれか1項に記載の分波装置。 - 前記第2のフィルタは、前記第3の通過帯域を有し、第2の直列腕共振子と第2の並列腕共振子とを含む第2のラダー型フィルタ部を含む、請求項1~4のいずれか1項に記載の分波装置。
- 前記第1のフィルタは、第1の直列腕共振子と第1の並列腕共振子とを含み、
前記第2のフィルタは、第2の直列腕共振子と第2の並列腕共振子とを含み、
前記第2のインダクタは、前記第1の並列腕共振子と接地電位との間に接続され、
前記第3のインダクタは、前記第2の並列腕共振子と接地電位との間に接続される、請求項1~3のいずれか1項に記載の分波装置。 - 前記第1のフィルタは、複数の第1の並列腕共振子を含み、
前記第2のフィルタは、複数の第2の並列腕共振子を含み、
前記第2のインダクタは、前記複数の第1の並列腕共振子のうちの少なくとも2つの並列腕共振子と接地電位との間に接続され、
前記第3のインダクタは、前記複数の第2の並列腕共振子のうちの少なくとも2つの並列腕共振子と接地電位との間に接続される、請求項1~3のいずれか1項に記載の分波装置。 - 第5の信号端子をさらに備え、
前記第1のフィルタは、
前記第1および第2の信号端子に接続され、前記第1の通過帯域を有する第1フィルタ部と、
前記第1および第3の信号端子に接続され、前記第2の通過帯域を有する第2フィルタ部とを含み、
前記第2のフィルタは、
前記第1および第4の信号端子に接続され、前記第3の通過帯域を有する第3フィルタ部と、
前記第1および第5の信号端子に接続され、前記第3の通過帯域とは異なる第4の通過帯域を有する第4フィルタ部とを含む、請求項1~7のいずれか1項に記載の分波装置。 - 前記第1~第4の信号端子は回路基板に設けられ、
前記第1のフィルタは、前記回路基板上に実装される第1のフィルタチップに含まれ、
前記第2のフィルタは、前記回路基板上に実装される第2のフィルタチップに含まれ、
前記第1のインダクタは、前記回路基板上に実装されるインダクタチップに含まれ、
前記第2のインダクタの少なくとも一部は、前記回路基板を平面視したときに、前記第1のフィルタチップに重なるように前記回路基板上に配置され、
前記第3のインダクタの少なくとも一部は、前記回路基板を平面視したときに、前記第2のフィルタチップに重なるように前記回路基板上に配置される、請求項1~8のいずれか1項に記載の分波装置。
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JP6414600B2 (ja) | 2018-10-31 |
JPWO2016056377A1 (ja) | 2017-04-27 |
KR101907810B1 (ko) | 2018-10-12 |
KR20170048570A (ko) | 2017-05-08 |
US10128815B2 (en) | 2018-11-13 |
DE112015004609T5 (de) | 2017-06-29 |
US20170194939A1 (en) | 2017-07-06 |
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DE112015004609B4 (de) | 2022-06-23 |
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