JP2010103605A - 雑音抑圧フィルタ内蔵伝送装置 - Google Patents
雑音抑圧フィルタ内蔵伝送装置 Download PDFInfo
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Abstract
【解決手段】 伝送周波数帯域減衰特性を持つフィルター12Fが形成された直方体状のフィルタ箱12を、導波管部10内に取り付けるフィルタ内蔵伝送装置で、上記フィルタ箱12の導波管部10内壁側の上面(矩形開口長辺側の)における長辺中心部の位置に電波吸収体20を設ける。これにより、導波管10の内壁とフィルタ箱12の外側面との僅かな隙間に流入する高次モードは、電波吸収体20に吸収され、またフランジ12bの後面で反射された高次モードも、電波吸収体20に吸収され、高次モードの共振が抑圧される。
【選択図】 図1
Description
2a,12a:開口、 2b,12b:フランジ、
2F,4F,12F:フィルタ
20:電波吸収体
Claims (1)
- 矩形導波管伝送路の伝送方向に直交する面に伝送周波数帯域に減衰特性を持つフィルタが形成された直方体状のフィルタ箱を、上記導波管内に取り付ける雑音抑制フィルタ内蔵伝送装置において、
上記フィルタ箱の矩形開口長辺側の面でその長辺の中心部の位置の、上記フィルタ箱と上記導波管内壁との間に、電波吸収体を設けたことを特徴とする雑音抑圧フィルタ内蔵伝送装置。
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JP2008270626A JP5165531B2 (ja) | 2008-10-21 | 2008-10-21 | 雑音抑圧フィルタ内蔵伝送装置 |
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JP2008270626A JP5165531B2 (ja) | 2008-10-21 | 2008-10-21 | 雑音抑圧フィルタ内蔵伝送装置 |
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JP2010103605A true JP2010103605A (ja) | 2010-05-06 |
JP5165531B2 JP5165531B2 (ja) | 2013-03-21 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111982240A (zh) * | 2020-09-30 | 2020-11-24 | 北京古大仪表有限公司 | 一种雷达物位计 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55118503U (ja) * | 1979-02-13 | 1980-08-21 | ||
JPS61121288A (ja) * | 1984-11-19 | 1986-06-09 | 松下電器産業株式会社 | 高周波加熱装置 |
JPS61125201A (ja) * | 1984-11-21 | 1986-06-12 | Hitachi Ltd | 高周波合成分配装置 |
JPS6397902U (ja) * | 1986-12-15 | 1988-06-24 | ||
JPH038282A (ja) * | 1989-06-02 | 1991-01-16 | Furukawa Electric Co Ltd:The | 同軸ケーブル用コネクタ |
JPH05335818A (ja) * | 1992-06-01 | 1993-12-17 | Murata Mfg Co Ltd | 共振周波数調整機構を有する空胴または誘電体共振器 |
JPH09312501A (ja) * | 1996-05-21 | 1997-12-02 | Nec Eng Ltd | 導波管フランジ |
JP2001168606A (ja) * | 1999-12-10 | 2001-06-22 | Matsushita Electric Ind Co Ltd | 高周波回路装置 |
JP2005333445A (ja) * | 2004-05-20 | 2005-12-02 | New Japan Radio Co Ltd | 受信帯域雑音抑圧フィルタ内蔵送信機 |
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- 2008-10-21 JP JP2008270626A patent/JP5165531B2/ja active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55118503U (ja) * | 1979-02-13 | 1980-08-21 | ||
JPS61121288A (ja) * | 1984-11-19 | 1986-06-09 | 松下電器産業株式会社 | 高周波加熱装置 |
JPS61125201A (ja) * | 1984-11-21 | 1986-06-12 | Hitachi Ltd | 高周波合成分配装置 |
JPS6397902U (ja) * | 1986-12-15 | 1988-06-24 | ||
JPH038282A (ja) * | 1989-06-02 | 1991-01-16 | Furukawa Electric Co Ltd:The | 同軸ケーブル用コネクタ |
JPH05335818A (ja) * | 1992-06-01 | 1993-12-17 | Murata Mfg Co Ltd | 共振周波数調整機構を有する空胴または誘電体共振器 |
JPH09312501A (ja) * | 1996-05-21 | 1997-12-02 | Nec Eng Ltd | 導波管フランジ |
JP2001168606A (ja) * | 1999-12-10 | 2001-06-22 | Matsushita Electric Ind Co Ltd | 高周波回路装置 |
JP2005333445A (ja) * | 2004-05-20 | 2005-12-02 | New Japan Radio Co Ltd | 受信帯域雑音抑圧フィルタ内蔵送信機 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111982240A (zh) * | 2020-09-30 | 2020-11-24 | 北京古大仪表有限公司 | 一种雷达物位计 |
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