发明申请
US20050227643A1 Apparatus and method for detecting radio frequency transmission power levels
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基本信息:
- 专利标题： Apparatus and method for detecting radio frequency transmission power levels
- 申请号：US10868123 申请日：2004-06-15
- 公开(公告)号：US20050227643A1 公开(公告)日：2005-10-13
- 发明人： Christopher Brindle , Norbert Schmitz , Christopher Weigand
- 申请人： Christopher Brindle , Norbert Schmitz , Christopher Weigand
- 申请人地址： US MA Lowell
- 专利权人： M/A-Com, Inc.
- 当前专利权人： M/A-Com, Inc.
- 当前专利权人地址： US MA Lowell
- 主分类号： H03G3/20
- IPC分类号： H03G3/20 ; H04B1/04 ; H01Q11/12 ; H04B1/00
摘要：
An apparatus and method for detecting radio frequency transmit power levels produced by a power amplifier of a wireless device is described. In one exemplary apparatus implementation, the apparatus includes a power amplifier, an antenna switch and a power amplifier detector. The power amplifier is configured to amplify a transmit signal at a desired power level. An antenna switch, is located between the power amplifier and an antenna, and is configured to switch the antenna from a receive mode to a transmit mode and vice versa. A power amplifier detector is connected to the antenna switch. The power amplifier detector is configured to receive a leakage signal from the antenna switch as a basis to detect the power level of the transmit signal.