DocumentCode
527930
Title
A SiGe 7 Gbit/s analog BPSK/QPSK demodulator
Author
Liu, Gang ; Su, Yinmei ; Schumacher, Hermann
Author_Institution
Inst. of Electron Devices & Circuits, Ulm Univ., Ulm, Germany
fYear
2010
fDate
18-21 July 2010
Firstpage
1
Lastpage
4
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.
Keywords
amplifiers; demodulation; phase shift keying; silicon compounds; Gilbert-Cell multiplier; SiGe; analog BPSK/QPSK demodulator; bit rate 7 Gbit/s; bit stream; externally synchronized carrier signal; limiting amplifier; Bandwidth; Binary phase shift keying; Demodulation; Gain; Limiting; Signal generators;
fLanguage
English
Publisher
ieee
Conference_Titel
Ph.D. Research in Microelectronics and Electronics (PRIME), 2010 Conference on
Conference_Location
Berlin
Print_ISBN
978-1-4244-7905-4
Type
conf
Filename
5587134
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