JP2007535276A5 - - Google Patents
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- Publication number
- JP2007535276A5 JP2007535276A5 JP2007510727A JP2007510727A JP2007535276A5 JP 2007535276 A5 JP2007535276 A5 JP 2007535276A5 JP 2007510727 A JP2007510727 A JP 2007510727A JP 2007510727 A JP2007510727 A JP 2007510727A JP 2007535276 A5 JP2007535276 A5 JP 2007535276A5
- Authority
- JP
- Japan
- Prior art keywords
- transceiver
- operating
- isolated
- transmitter output
- receiver input
- 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
- 230000001702 transmitter Effects 0.000 claims 10
- 230000005540 biological transmission Effects 0.000 claims 1
Claims (5)
- 無線装置において使用されるトランシーバであって、
送信用の無線信号を生成するように構成された送信機回路と、
アンテナと送信機回路との間に接続され、かつ、トランシーバが送信モードのときには動作送信機出力インピーダンスを、トランシーバが受信モードのときには絶縁送信機出力インピーダンスを有するように構成された送信機アンプと、
無線信号をアンテナで受信し、受信した無線信号を処理するように構成された受信機回路と、
アンテナと受信機回路との間に接続され、かつ、トランシーバが受信モードのときには動作受信機入力インピーダンスを、トランシーバが送信モードのときには絶縁受信機入力インピーダンスを有するように構成された受信機アンプと、
絶縁送信機出力インピーダンスは動作受信機入力インピーダンスよりも大きいことと、
絶縁受信機入力インピーダンスは動作送信機出力インピーダンスよりも大きいことと、からなるトランシーバ。 - 絶縁送信機出力インピーダンスは動作受信機入力インピーダンスの100倍以上である請求項1に記載のトランシーバ。
- 動作受信機入力インピーダンスは30Ω〜75Ωである請求項1に記載のトランシーバ。
- 絶縁受信機入力インピーダンスは動作送信機出力インピーダンスの100倍以上である請求項1に記載のトランシーバ。
- 動作送信機出力インピーダンスは1Ω〜10Ωである請求項1に記載のトランシーバ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/834,024 US7324790B2 (en) | 2004-04-29 | 2004-04-29 | Wireless transceiver and method of operating the same |
PCT/US2005/008174 WO2005112286A2 (en) | 2004-04-29 | 2005-03-11 | Wireless transceiver and method of operating the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007535276A JP2007535276A (ja) | 2007-11-29 |
JP2007535276A5 true JP2007535276A5 (ja) | 2008-05-01 |
Family
ID=35187743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007510727A Pending JP2007535276A (ja) | 2004-04-29 | 2005-03-11 | 無線トランシーバおよびその動作方法 |
Country Status (6)
Country | Link |
---|---|
US (2) | US7324790B2 (ja) |
EP (1) | EP1741196A4 (ja) |
JP (1) | JP2007535276A (ja) |
KR (1) | KR20070002075A (ja) |
CN (1) | CN100539454C (ja) |
WO (1) | WO2005112286A2 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4609355B2 (ja) * | 2006-03-22 | 2011-01-12 | 株式会社日本自動車部品総合研究所 | タイヤ空気圧検出装置 |
US20070249294A1 (en) * | 2006-04-20 | 2007-10-25 | Chang-Ching Wu | Transmit-receive switch for ultrawideband and method for isolating transmitting and receiving signal thereof |
US7865149B2 (en) * | 2007-06-01 | 2011-01-04 | Broadcom Corporation | On chip MOS transmit / receive switch |
JP2011044944A (ja) * | 2009-08-21 | 2011-03-03 | Sony Corp | 通信装置、通信システム及び通信方法 |
US20120309327A1 (en) * | 2011-05-31 | 2012-12-06 | Bryan Fast | Rf amplifier with open circuit input off-state |
US8325865B1 (en) * | 2011-07-31 | 2012-12-04 | Broadcom Corporation | Discrete digital receiver |
US9413415B2 (en) * | 2011-12-20 | 2016-08-09 | Murata Manufacturing Co., Ltd. | High frequency module |
WO2013155494A1 (en) * | 2012-04-12 | 2013-10-17 | Skyworks Solutions, Inc. | Systems and methods related to improved isolation between transmit and receive radio-frequency signals |
CN104935316B (zh) * | 2014-03-21 | 2018-08-31 | 博通集成电路(上海)股份有限公司 | 用于控制收发通路切换的射频开关、射频系统和操作方法 |
KR102244525B1 (ko) * | 2014-12-24 | 2021-04-26 | 엘지이노텍 주식회사 | Spdt 스위치 |
US9958540B2 (en) | 2015-02-24 | 2018-05-01 | S-1 Corporation | Ultra-wideband transceiver, signal transmission and reception method thereof, and ultra-wideband radar sensor including the same |
KR101637515B1 (ko) * | 2015-02-24 | 2016-07-07 | 주식회사 에스원 | 초광대역 트랜시버, 이의 신호 송수신 방법, 그리고 이를 포함하는 초광대역 레이더 센서 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3238931B2 (ja) * | 1991-06-24 | 2001-12-17 | 三洋電機株式会社 | デジタル携帯電話器 |
US5457814A (en) * | 1993-10-02 | 1995-10-10 | Nokia Mobile Phones Ltd. | Power boost system for cellular telephone |
JP2790062B2 (ja) * | 1994-11-22 | 1998-08-27 | 日本電気株式会社 | 無線通信装置 |
WO1997023053A1 (fr) * | 1995-12-18 | 1997-06-26 | Matsushita Electric Industrial Co., Ltd. | Circuit emetteur-recepteur pour communication radio et dispositif a circuit integre semi-conducteur |
US6510309B1 (en) * | 1996-11-20 | 2003-01-21 | Conexant Systems, Inc. | Intermediate frequency amplifier circuit for use in receive and transmit modes |
US6122488A (en) * | 1998-03-05 | 2000-09-19 | Motorola, Inc. | Method and apparatus for increasing an output impedance of a transmit amplifier during receive mode of a two-way communication unit |
US6356536B1 (en) * | 1998-09-30 | 2002-03-12 | Ericsson Inc. | Protective and decoupling shunt switch at LNA input for TDMA/TDD transceivers |
US6327465B1 (en) * | 1998-12-02 | 2001-12-04 | Micron Technology, Inc. | Voltage tunable active inductorless filter |
US6735418B1 (en) * | 1999-05-24 | 2004-05-11 | Intel Corporation | Antenna interface |
FR2818054B1 (fr) * | 2000-12-08 | 2006-08-11 | St Microelectronics Sa | Tete d'emission-reception |
FI20002902A (fi) * | 2000-12-29 | 2002-06-30 | Nokia Corp | Viestintälaite ja menetelmä lähettimen ja vastaanottimen kytkemiseksi |
GB0217932D0 (en) * | 2002-08-02 | 2002-09-11 | Koninkl Philips Electronics Nv | High frequency module |
-
2004
- 2004-04-29 US US10/834,024 patent/US7324790B2/en not_active Expired - Fee Related
-
2005
- 2005-03-11 CN CNB2005800183158A patent/CN100539454C/zh not_active Expired - Fee Related
- 2005-03-11 EP EP05725380.9A patent/EP1741196A4/en not_active Withdrawn
- 2005-03-11 JP JP2007510727A patent/JP2007535276A/ja active Pending
- 2005-03-11 KR KR1020067022503A patent/KR20070002075A/ko not_active Application Discontinuation
- 2005-03-11 WO PCT/US2005/008174 patent/WO2005112286A2/en active Application Filing
-
2007
- 2007-12-13 US US12/000,464 patent/US7937064B2/en not_active Expired - Fee Related
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