JPS6478001A - Polarization circuit for dielectric filter - Google Patents
Polarization circuit for dielectric filterInfo
- Publication number
- JPS6478001A JPS6478001A JP23585087A JP23585087A JPS6478001A JP S6478001 A JPS6478001 A JP S6478001A JP 23585087 A JP23585087 A JP 23585087A JP 23585087 A JP23585087 A JP 23585087A JP S6478001 A JPS6478001 A JP S6478001A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- coupled
- resonator
- poles
- polarization element
- 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
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
PURPOSE:To obtain a required attenuation quantity in a wide band area by forming plural poles in either a high or a low frequency band area side by setting different impedance for polarization element connected to a resonator. CONSTITUTION:The resonators f1-f4 are inductive-coupled by coils 1-3, and input and an output terminals 4 and 5 and the resonators f1 and f4 are capaitive- coupled by capacitors C3 and C4. And the input terminal 4 and the resonator f2 are capacitive-coupled by a capacitor C1 as the polarization element, and also, the resonator f3 and the output terminal 5 are capacitive-coupled by a capacitor C2 as the polarization element. In other words, the impedance of either on one side of the capacitor C1 or C2 is set so as to be larger than that of the capacitor on the other side. In such a way, since it follows that two poles are formed by the deviation of positions where the poles are formed, and bouncing can be prevented from being generated, and it is possible to uniformize the attenuation quantity, the attenuation quantity can be taken in the wide band area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23585087A JPS6478001A (en) | 1987-09-18 | 1987-09-18 | Polarization circuit for dielectric filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23585087A JPS6478001A (en) | 1987-09-18 | 1987-09-18 | Polarization circuit for dielectric filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6478001A true JPS6478001A (en) | 1989-03-23 |
Family
ID=16992183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23585087A Pending JPS6478001A (en) | 1987-09-18 | 1987-09-18 | Polarization circuit for dielectric filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6478001A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03254203A (en) * | 1990-03-02 | 1991-11-13 | Fujitsu Ltd | Dielectric filter and its resonator |
| JPH0491501A (en) * | 1990-08-07 | 1992-03-25 | Matsushita Electric Ind Co Ltd | Dielectric filter |
| US5202653A (en) * | 1990-04-17 | 1993-04-13 | Murata Manufacturing Co., Ltd. | Band-pass filter including resonance elements coupled by a coupling line and a by-pass coupling line |
| US5412358A (en) * | 1992-02-28 | 1995-05-02 | Ngk Insulators, Ltd. | Layered stripline filter |
| WO2022019041A1 (en) * | 2020-07-22 | 2022-01-27 | 株式会社村田製作所 | Band-pass filter and high-frequency front-end circuit comprising same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61269402A (en) * | 1985-05-22 | 1986-11-28 | Nippon Dengiyou Kosaku Kk | Polar type band-pass filter |
| JPS6251803A (en) * | 1985-08-30 | 1987-03-06 | Murata Mfg Co Ltd | Microwave filter |
| JPS62159501A (en) * | 1986-01-04 | 1987-07-15 | Nippon Dengiyou Kosaku Kk | Polar type band pass filter |
-
1987
- 1987-09-18 JP JP23585087A patent/JPS6478001A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61269402A (en) * | 1985-05-22 | 1986-11-28 | Nippon Dengiyou Kosaku Kk | Polar type band-pass filter |
| JPS6251803A (en) * | 1985-08-30 | 1987-03-06 | Murata Mfg Co Ltd | Microwave filter |
| JPS62159501A (en) * | 1986-01-04 | 1987-07-15 | Nippon Dengiyou Kosaku Kk | Polar type band pass filter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03254203A (en) * | 1990-03-02 | 1991-11-13 | Fujitsu Ltd | Dielectric filter and its resonator |
| US5202653A (en) * | 1990-04-17 | 1993-04-13 | Murata Manufacturing Co., Ltd. | Band-pass filter including resonance elements coupled by a coupling line and a by-pass coupling line |
| JPH0491501A (en) * | 1990-08-07 | 1992-03-25 | Matsushita Electric Ind Co Ltd | Dielectric filter |
| US5412358A (en) * | 1992-02-28 | 1995-05-02 | Ngk Insulators, Ltd. | Layered stripline filter |
| WO2022019041A1 (en) * | 2020-07-22 | 2022-01-27 | 株式会社村田製作所 | Band-pass filter and high-frequency front-end circuit comprising same |
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