Title :
Limiting amplifiers for bits recovery of Gbps analog BPSK/QPSK demodulator
Author :
Su, Yinmei ; Liu, Gang ; Schumacher, Hermann
Author_Institution :
Inst. of Electron Devices & Circuits, Ulm Univ., Ulm, Germany
Abstract :
This paper presents modified Cherry-Hooper limiting amplifiers in a Si/SiGe HBT technology. The 3 dB bandwidth of 9 GHz is chosen to match the intended application, a wireless ultra-high rate 60 GHz receiver running up to 6 Gbps. One-stage, two-stage, and three-stage versions were realized and showed 17 dB, 37 dB, and 54 dB DC gain with dynamic ranges of at least 23.4 dB, 32.2 dB, and 44.3 dB at bit error rates less than 10-13 for 6 Gbps, respectively. The gain, bandwidth and dynamic range are sufficient to recover the bits from an analog Gbit/s BPSK/QPSK demodulator. The limiting amplifiers are all biased at 4V and consume 28.5 mA, 52 mA and 91mA current respectively.
Keywords :
Ge-Si alloys; amplifiers; analogue integrated circuits; demodulators; error statistics; heterojunction bipolar transistors; limiters; quadrature phase shift keying; Cherry-Hooper limiting amplifier; HBT technology; analog BPSK/QPSK demodulator; bandwidth 60 GHz; bandwidth 9 GHz; bit error rate; bits recovery; current 28.5 mA; current 52 mA; current 91 mA; gain 17 dB; gain 37 dB; gain 54 dB; voltage 4 V; wireless ultra-high rate receiver; Bandwidth; Demodulation; Dynamic range; Gain; Gain measurement; Limiting; Phase shift keying;
Conference_Titel :
Ph.D. Research in Microelectronics and Electronics (PRIME), 2010 Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-7905-4
