发明名称 TRANCEIVER CIRCUIT AND TRANCEIVER INTEGRATED CIRCUIT FOR COMPENSATING IQ MISMATCH AND CARRIER LEAKAGE
摘要 A transceiver circuit capable of compensating IQ mismatch and carrier leakage, and a transceiver integrated circuit are provided to simplify measuring procedure by feeding back an output signal of an uplink mixer into a downlink mixer. An IQ uplink conversion mixer(10) converts a first IQ signal to a first radio frequency. An IQ downlink conversion mixer(20) converts a second radio frequency to a second IQ signal. A feed back pass(30) provides the first radio frequency to the IQ downlink conversion mixer. A first local oscillator(40) provides a first IQ LO signal to the IQ uplink conversion mixer or the IQ downlink conversion mixer. A second local oscillator(50) provides a second IQ LO signal to the IQ uplink conversion mixer or the IQ downlink conversion mixer.
申请公布号 KR20090015540(A) 申请公布日期 2009.02.12
申请号 KR20070079935 申请日期 2007.08.09
申请人 GCT SEMICONDUCTOR, INC. 发明人 LEE, SEUNG WOOK
分类号 H03D7/00 主分类号 H03D7/00
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