JP2007158689A - アンテナの送受信切替え回路 - Google Patents
アンテナの送受信切替え回路 Download PDFInfo
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- JP2007158689A JP2007158689A JP2005350776A JP2005350776A JP2007158689A JP 2007158689 A JP2007158689 A JP 2007158689A JP 2005350776 A JP2005350776 A JP 2005350776A JP 2005350776 A JP2005350776 A JP 2005350776A JP 2007158689 A JP2007158689 A JP 2007158689A
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- transmission
- antenna
- switch
- circuit
- reception switching
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Abstract
【解決手段】 PINダイオードを有するアンテナの送受信切替え回路において、PINダイオードのターンオフ時間を短縮するために、放電抵抗R2を備えると共に、スイッチS1,S3を介して逆バイアス印加回路を接続可能に備え、且つ、スイッチに連動し、該スイッチによる逆バイアス印加時に放電抵抗R2を回路から切り離す放電抵抗切離し用スイッチS2を備えた。
【選択図】 図1
Description
今、スイッチS1が閉じた場合、電流は抵抗R1、インダクタンスL1、PINダイオードD1、1/4λ伝送ラインSL1、PINダイオードD2の経路に従って流れ、PINダイオードD1,D2を順バイアスすることにより、PINダイオードD1、D2は導通状態となる。
図1において、TXは送信端、D1,D2はPINダイオード、SL1は1/4λ送信ライン、L1はインダクタンス、C1,C2,C3はコンデンサ、R1、R2は抵抗、S1〜S3は連動スイッチ、Vは逆バイアス電源である。
Claims (1)
- PINダイオードを有するアンテナの送受信切替え回路において、
前記PINダイオードのターンオフ時間を短縮するために、放電抵抗を備えると共に、スイッチを介して逆バイアス印加回路を接続可能に備え、且つ、前記スイッチに連動し、該スイッチによる逆バイアス印加時に前記放電抵抗を回路から切り離す放電抵抗切離し用スイッチを備えたことを特徴とするアンテナの送受信切替え回路。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005350776A JP4522945B2 (ja) | 2005-12-05 | 2005-12-05 | アンテナの送受信切替え回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005350776A JP4522945B2 (ja) | 2005-12-05 | 2005-12-05 | アンテナの送受信切替え回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007158689A true JP2007158689A (ja) | 2007-06-21 |
JP4522945B2 JP4522945B2 (ja) | 2010-08-11 |
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Application Number | Title | Priority Date | Filing Date |
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JP2005350776A Expired - Fee Related JP4522945B2 (ja) | 2005-12-05 | 2005-12-05 | アンテナの送受信切替え回路 |
Country Status (1)
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JP (1) | JP4522945B2 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02237319A (ja) * | 1989-03-10 | 1990-09-19 | Matsushita Electric Ind Co Ltd | アンテナ切替スイッチ |
JP2000002401A (ja) * | 1998-06-17 | 2000-01-07 | Ishikawajima Harima Heavy Ind Co Ltd | ボイラのバックステーバンパ構造 |
WO2002017505A1 (en) * | 2000-08-25 | 2002-02-28 | Matsushita Electric Industrial Co., Ltd. | Communication device |
-
2005
- 2005-12-05 JP JP2005350776A patent/JP4522945B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02237319A (ja) * | 1989-03-10 | 1990-09-19 | Matsushita Electric Ind Co Ltd | アンテナ切替スイッチ |
JP2000002401A (ja) * | 1998-06-17 | 2000-01-07 | Ishikawajima Harima Heavy Ind Co Ltd | ボイラのバックステーバンパ構造 |
WO2002017505A1 (en) * | 2000-08-25 | 2002-02-28 | Matsushita Electric Industrial Co., Ltd. | Communication device |
Also Published As
Publication number | Publication date |
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JP4522945B2 (ja) | 2010-08-11 |
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