TWI342669B - - Google Patents
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- Publication number
- TWI342669B TWI342669B TW97106641A TW97106641A TWI342669B TW I342669 B TWI342669 B TW I342669B TW 97106641 A TW97106641 A TW 97106641A TW 97106641 A TW97106641 A TW 97106641A TW I342669 B TWI342669 B TW I342669B
- Authority
- TW
- Taiwan
- Prior art keywords
- capacitor
- band
- inductor
- pass filter
- switch
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims description 82
- 238000010586 diagram Methods 0.000 description 16
- 230000002238 attenuated effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
Landscapes
- Filters And Equalizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007060472A JP4713523B2 (ja) | 2007-03-09 | 2007-03-09 | 帯域可変フィルタ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200901623A TW200901623A (en) | 2009-01-01 |
| TWI342669B true TWI342669B (OSRAM) | 2011-05-21 |
Family
ID=39845839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW97106641A TW200901623A (en) | 2007-03-09 | 2008-02-26 | Alterable band-pass filter |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4713523B2 (OSRAM) |
| CN (1) | CN101262209B (OSRAM) |
| TW (1) | TW200901623A (OSRAM) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2396701C2 (ru) * | 2008-10-23 | 2010-08-10 | Федеральное государственное унитарное предприятие "Омский научно-исследовательский институт приборостроения" | Полосовой перестраиваемый lc-фильтр |
| TWI470928B (zh) | 2009-09-02 | 2015-01-21 | 晨星半導體股份有限公司 | 調諧器及其前級電路 |
| CN103795939A (zh) * | 2014-01-22 | 2014-05-14 | 中国科学院长春光学精密机械与物理研究所 | 使用可变带通滤波器的采样系统及双相关采样方法 |
| CN108028635B (zh) | 2015-09-09 | 2021-04-20 | 株式会社村田制作所 | 频率可变lc滤波器、高频前端电路 |
| CN113014222B (zh) * | 2021-04-26 | 2023-08-08 | 哈尔滨海能达科技有限公司 | 一种带通滤波器电路和电子设备 |
| CN119675617B (zh) * | 2024-11-28 | 2025-09-30 | 南通大学 | 一种基于lc元件的宽频段可调谐带通滤波器 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56103514A (en) * | 1980-01-23 | 1981-08-18 | Hitachi Ltd | Filter circuit |
| JPS61239727A (ja) * | 1985-04-17 | 1986-10-25 | Hitachi Ltd | チユ−ナの入力回路 |
| JPH06334463A (ja) * | 1993-05-26 | 1994-12-02 | Toshiba Corp | 帯域切換回路 |
| JP2846240B2 (ja) * | 1994-05-20 | 1999-01-13 | 国際電気株式会社 | 周波数帯域可変フィルタ |
| JP3570375B2 (ja) * | 2000-04-19 | 2004-09-29 | 株式会社村田製作所 | 周波数可変フィルタ、アンテナ共用器および通信機装置 |
-
2007
- 2007-03-09 JP JP2007060472A patent/JP4713523B2/ja active Active
-
2008
- 2008-02-26 TW TW97106641A patent/TW200901623A/zh unknown
- 2008-03-07 CN CN200810082192XA patent/CN101262209B/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101262209A (zh) | 2008-09-10 |
| JP4713523B2 (ja) | 2011-06-29 |
| TW200901623A (en) | 2009-01-01 |
| JP2008227729A (ja) | 2008-09-25 |
| CN101262209B (zh) | 2010-06-16 |
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