JP5665620B2 - Tdd受信機 - Google Patents
Tdd受信機 Download PDFInfo
- Publication number
- JP5665620B2 JP5665620B2 JP2011066269A JP2011066269A JP5665620B2 JP 5665620 B2 JP5665620 B2 JP 5665620B2 JP 2011066269 A JP2011066269 A JP 2011066269A JP 2011066269 A JP2011066269 A JP 2011066269A JP 5665620 B2 JP5665620 B2 JP 5665620B2
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- Prior art keywords
- antenna
- abnormality detection
- circuit unit
- signal
- tdd
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- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
(実施形態の構成)
(実施例の動作)
(実施形態の効果)
Claims (2)
- アンテナにより受信される信号を増幅する低雑音増幅器を含む受信系回路部と、
アンテナ側と出力側にインピーダンス整合された異常検出増幅器と、前記異常検出増幅器の出力に接続される方向性結合器と、前記方向性結合器の主線路に接続され、前記アンテナの動作周波数と同じ周波数の信号を生成する発振器と、前記方向性結合器の副線路側に接続される検波器とを含むアンテナ異常検出系回路部と、
前記受信系回路部と前記アンテナ異常検出系回路部とを時分割で切替えるTDDスイッチと、
前記TDDスイッチを送信のタイミングで前記アンテナ異常検出系回路部に切替え、前記アンテナ異常検出系回路部の発振器から前記信号が出力されると、前記検波器で検波される前記異常検出増幅器の反射電力を観測してアンテナ異常を検知する信号処理部と、
を有することを特徴とするTDD受信機。 - 前記信号処理部は、
前記反射電力から演算により前記異常検出増幅器の反射損失を監視し、前記反射損失の変化量に応じて前記アンテナの受信周波数の電圧定在波比の変化を識別して前記アンテナ異常を検出することを特徴とする請求項1記載のTDD受信機。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011066269A JP5665620B2 (ja) | 2011-03-24 | 2011-03-24 | Tdd受信機 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2011066269A JP5665620B2 (ja) | 2011-03-24 | 2011-03-24 | Tdd受信機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012204989A JP2012204989A (ja) | 2012-10-22 |
JP5665620B2 true JP5665620B2 (ja) | 2015-02-04 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2011066269A Expired - Fee Related JP5665620B2 (ja) | 2011-03-24 | 2011-03-24 | Tdd受信機 |
Country Status (1)
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JP (1) | JP5665620B2 (ja) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3973958B2 (ja) * | 2002-04-18 | 2007-09-12 | シャープ株式会社 | アンテナ・セルフチェック機能付き受信機 |
JP2009194723A (ja) * | 2008-02-15 | 2009-08-27 | Panasonic Corp | 増幅回路 |
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2011
- 2011-03-24 JP JP2011066269A patent/JP5665620B2/ja not_active Expired - Fee Related
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JP2012204989A (ja) | 2012-10-22 |
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