发明授权
- 专利标题: Radio transceiver including transmitter power control circuit
- 专利标题(中): 射频收发器包括发射机功率控制电路
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申请号: US742330申请日: 1996-11-01
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公开(公告)号: US5832374A公开(公告)日: 1998-11-03
- 发明人: Winfrid Birth , Erich Saur , Christopher Marshall
- 申请人: Winfrid Birth , Erich Saur , Christopher Marshall
- 申请人地址: NY New York
- 专利权人: U.S. Phillips Corporation
- 当前专利权人: U.S. Phillips Corporation
- 当前专利权人地址: NY New York
- 优先权: DEX4339526.0 19931119
- 主分类号: H03G3/30
- IPC分类号: H03G3/30 ; H04B1/04 ; H01Q11/12
摘要:
The invention relates to a radio transceiver having a high-frequency output stage and a control circuit for controlling the transmitter power, in which the control circuit is supplied with an actual voltage in the form of a signal derived from the transmit signal. Especially in handheld radios the environment of the antenna is affected by the position of the unit, so that antenna mismatches constantly occur. This can disturb the proper operation of state-of-the-art power control circuits. To avoid such interference, the invention proposed to supply as an actual value to the control circuit a signal which is tapped prior to the signal being supplied to the high-frequency power amplifier output stage.
公开/授权文献
- US5081723A Playpen with detachable sides used as security gates 公开/授权日:1992-01-21
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