WIRELESS RECEIVER WITH NOTCH FILTER TO REDUCE EFFECTS OF TRANSMIT SIGNAL LEAKAGE
摘要
This disclosure describes techniques for reducing adverse effects of TX signal leakage in a full-duplex, wireless communication device. The techniques make use of a notch filter to reject TX signal leakage in a signal processed in the RX path of the wireless communication device. The notch filter may be constructed as a complex notch filter using passive resistor and capacitor components to produce a notch frequency that attenuates TX signal leakage components in a desired signal. The notch filter may be applied to a down-converted, baseband signal produced by a passive mixer.
申请公布号
WO2008112800(A2)
申请公布日期
2008.09.18
申请号
WO2008US56711
申请日期
2008.03.12
申请人
QUALCOMM INCORPORATED;CHANG, LI-CHUNG;GUDEM, PRASAD S.;CABANILLAS, JOSE