发明授权
- 专利标题: Local oscillator leakage counterbalancing in a receiver
- 专利标题(中): 接收机本地振荡器泄漏平衡
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申请号: US11679101申请日: 2007-02-26
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公开(公告)号: US07949323B1公开(公告)日: 2011-05-24
- 发明人: Khurram Muhammad , Chih-Ming Hung , Imtinan Elahi
- 申请人: Khurram Muhammad , Chih-Ming Hung , Imtinan Elahi
- 申请人地址: US TX Dallas
- 专利权人: Texas Instruments Incorporated
- 当前专利权人: Texas Instruments Incorporated
- 当前专利权人地址: US TX Dallas
- 代理商 John R. Pessetto; W. James Brady; Frederick J. Telecky, Jr.
- 主分类号: H04B1/10
- IPC分类号: H04B1/10
摘要:
The present invention provides a local oscillator (LO) leakage controller for use with a receiver. In one embodiment, the LO leakage controller includes a comparison unit configured to process an LO leakage error signal from the receiver to provide a leakage cancellation signal. Additionally, the LO leakage controller also includes a leakage counterbalance unit coupled to the comparison unit and configured to adapt the leakage cancellation signal to the receiver to counterbalance LO leakage in the receiver.
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