论文信息 - 2.5 V passive CMOS mixer with 20 dBm P1 dB compression

2.5 V passive CMOS mixer with 20 dBm P1 dB compression

A passive CMOS down conversion mixer with LO buffer is presented in 0.25 mum SiGe BiCMOS using a 2.5 V supply. With a 60 MHz RF signal input, measurements show that the conversion loss is 2.9 dB, the input-referred 1 dB compression point is 20 dBm and the input- referred noise is -146.8 dBm/Hz. Compared to conventional NMOS mixers, the 1 dB compression point is improved by 9.7 dB. The tradeoffs and the design of the LO buffer, which has a strong impact on the intermodulation distortion, are also presented.

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