发明名称 |
Method and apparatus for reducing phase imbalance in radio frequency signals |
摘要 |
Systems and method for reducing phase imbalance in radio frequency (RF) signals are disclosed. The phase imbalance in an RF signal may be due to phase imbalance in the local oscillator used for upconversion in a transmitter, and downconversion in a receiver. The RF signal is converted to a digital signal. The phase imbalance in the digital signal is measured by using a digital signal processor. The digital signal processor generates a compensation signal in response to the measurement of the phase imbalance. The compensation signal is used to generate a tuning signal to tune the local oscillator used for the upconversion or downconversion, thereby reducing the phase imbalance.
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申请公布号 |
US2007135064(A1) |
申请公布日期 |
2007.06.14 |
申请号 |
US20050298070 |
申请日期 |
2005.12.09 |
申请人 |
RUELKE CHARLES R;BOLTON JERRY T JR;SALVI RAUL |
发明人 |
RUELKE CHARLES R.;BOLTON JERRY T.JR.;SALVI RAUL |
分类号 |
H04B1/04 |
主分类号 |
H04B1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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