JPH0434023U - - Google Patents
Info
- Publication number
- JPH0434023U JPH0434023U JP7722590U JP7722590U JPH0434023U JP H0434023 U JPH0434023 U JP H0434023U JP 7722590 U JP7722590 U JP 7722590U JP 7722590 U JP7722590 U JP 7722590U JP H0434023 U JPH0434023 U JP H0434023U
- Authority
- JP
- Japan
- Prior art keywords
- filter
- circuit
- type
- filter element
- filter circuit
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案のフイルタ回路の一実施例を示
す回路図、第２図ａ〜ｄはそれぞれ本考案による
第１の整合回路Ｄ及び第２の整合回路Ｅの実施例
を示す回路図、第３図は従来のフイルタ回路の一
例を示す回路図である。
１……フイルタ素子、Ａ……入力側回路、Ｂ…
…出力側回路、Ｄ……第１の整合回路、Ｅ……第
２の整合回路。
FIG. 1 is a circuit diagram showing an embodiment of a filter circuit of the present invention, and FIGS. 2 a to 2 d are circuit diagrams showing embodiments of a first matching circuit D and a second matching circuit E according to the present invention, respectively. FIG. 3 is a circuit diagram showing an example of a conventional filter circuit. 1...Filter element, A...Input side circuit, B...
...output side circuit, D...first matching circuit, E...second matching circuit.
Claims (1)
において、 フイルタ素子と、前記フイルタ素子の入力端に
設けられたπ型あるいはＴ型の整合回路と、前記
フイルタ素子の出力端に設けられたπ型あるいは
Ｔ型の整合回路とを具備することを特徴とするイ
ンピーダンス整合機能を有するフイルタ回路。 (2) 前記フイルタ素子は、ＳＡＷフイルタであ
る請求項１記載のインピーダンス整合機能を有す
るフイルタ回路。[Claims for Utility Model Registration] (1) A filter circuit that passes a specific frequency band, comprising a filter element, a π-type or T-type matching circuit provided at the input end of the filter element, and a filter circuit that passes a specific frequency band. 1. A filter circuit having an impedance matching function, comprising a π-type or T-type matching circuit provided at an output end. (2) The filter circuit having an impedance matching function according to claim 1, wherein the filter element is a SAW filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7722590U JPH0434023U (en) | 1990-07-18 | 1990-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7722590U JPH0434023U (en) | 1990-07-18 | 1990-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0434023U true JPH0434023U (en) | 1992-03-19 |
Family
ID=31619414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7722590U Pending JPH0434023U (en) | 1990-07-18 | 1990-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0434023U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003309450A (en) * | 2002-04-17 | 2003-10-31 | Murata Mfg Co Ltd | Band pass filter and communication apparatus |
| JP2011530254A (en) * | 2008-08-07 | 2011-12-15 | エプコス アクチエンゲゼルシャフト | Dynamic impedance matching network and method for matching impedance between source and load |
| JP2012505580A (en) * | 2008-10-08 | 2012-03-01 | エプコス アーゲー | Impedance matching circuit for planar antenna |
| JP2017017733A (en) * | 2010-12-10 | 2017-01-19 | ペレグリン セミコンダクター コーポレイション | Method, system and apparatus for resonator circuits and modulating resonators |
-
1990
- 1990-07-18 JP JP7722590U patent/JPH0434023U/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003309450A (en) * | 2002-04-17 | 2003-10-31 | Murata Mfg Co Ltd | Band pass filter and communication apparatus |
| JP2011530254A (en) * | 2008-08-07 | 2011-12-15 | エプコス アクチエンゲゼルシャフト | Dynamic impedance matching network and method for matching impedance between source and load |
| JP2012505580A (en) * | 2008-10-08 | 2012-03-01 | エプコス アーゲー | Impedance matching circuit for planar antenna |
| US8760239B2 (en) | 2008-10-08 | 2014-06-24 | Qualcomm Technologies, Inc. | Impedance matching circuit for matching planar antennas |
| JP2017017733A (en) * | 2010-12-10 | 2017-01-19 | ペレグリン セミコンダクター コーポレイション | Method, system and apparatus for resonator circuits and modulating resonators |