发明名称 |
MULTI CARRIER LEAKAGE TUNING BY ERROR POWER DETECTION |
摘要 |
A communication device and method of removing an LO leakage signal from a signal path on the fly is disclosed. The signal path may be that of a transmitter or receiver. An initial RF output signal, containing a desired RF output signal and an LO leakage signal, is supplied from a feedforward path to a combiner/splitter on a feedback path. A 180° out-of-phase copy of the desired RF output signal is also supplied to the combiner/splitter. The resulting LO leakage signal is down-converted and the power of the down-converted signal determined and used to suppress the LO leakage signal. The resulting LO leakage signal is also supplied to the feedforward path of the feedback loop. |
申请公布号 |
EP2514100(B1) |
申请公布日期 |
2014.04.23 |
申请号 |
EP20100785268 |
申请日期 |
2010.11.19 |
申请人 |
MOTOROLA SOLUTIONS, INC. |
发明人 |
HANSEN, NIELS;HOYERBY, MIKKEL, CHRISTIAN, WENDELBOE |
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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