[42]

A SiGe 7 Gbit/s Analog BPSK/QPSK Demodulator

Gang Liu, Yinmei Su and Hermann Schumacher

This paper will be presented at the PRIME 2010 ( http://www.prime2010.org ).

Abstract: In this paper, the authors present an analog BPSK/QPSK demodulator which employs a Gilbert-Cell multiplier and a limiting amplifier. The demodulation is done by multiplying the BPSK/QPSK input signal with an externally synchronized carrier signal. The demodulated bit stream is then recovered by the following limiting amplifier. The demodulator was tested with 50 MS/s and 3.5 GS/s QPSK signals and showed successful demodulation. The recovered bit has a voltage swing of around 580 mVpp. The measured input dynamic range is around 50 dB.

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Publications Publications, alphabetical order Publications 2008 Publications 2009 Publications 2010 Publications 2011 ICC 2009 PR 01/2009 Final Presentation	[42] A SiGe 7 Gbit/s Analog BPSK/QPSK Demodulator Gang Liu, Yinmei Su and Hermann Schumacher This paper will be presented at the PRIME 2010 ( http://www.prime2010.org ). Abstract: In this paper, the authors present an analog BPSK/QPSK demodulator which employs a Gilbert-Cell multiplier and a limiting amplifier. The demodulation is done by multiplying the BPSK/QPSK input signal with an externally synchronized carrier signal. The demodulated bit stream is then recovered by the following limiting amplifier. The demodulator was tested with 50 MS/s and 3.5 GS/s QPSK signals and showed successful demodulation. The recovered bit has a voltage swing of around 580 mVpp. The measured input dynamic range is around 50 dB.