Demodulator for TH-UWB RF receiver in 90-nm CMOS technology

A sensitive demodulator for time-hopping ultra bandwidth (TH-UWB) radio frequency (RF) receiver is reported. The demodulator consists of a sensitive envelope detector, a voltage comparer, some signal amplifiers and a pulse shaper. The designs of the demodulator's circuit and layout are with 90-...

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Bibliographic Details
Main Authors: Ji-hai Duan, Zhi-gong Wang, Zhi-qun Li
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
CMOS
CMOS technology
Demodulation
demodulator
envelope detector
Envelope detectors
Pulse amplifiers
Pulse shaping methods
Radio frequency
Radiofrequency amplifiers
Receivers
time-hopping ultra wideband (TH-UWB)
Voltage
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Description
Summary:A sensitive demodulator for time-hopping ultra bandwidth (TH-UWB) radio frequency (RF) receiver is reported. The demodulator consists of a sensitive envelope detector, a voltage comparer, some signal amplifiers and a pulse shaper. The designs of the demodulator's circuit and layout are with 90-nm CMOS technology. The simulation results show that the demodulator can demodulate correctly the TH-UWB signals with a center frequency of 4 GHz and a bandwidth of more than 500 MHz, and an input voltage sensitivity of 3 mV. The whole system consumes 8 mW from a 1.2 V supply.
DOI:10.1109/MAPE.2009.5355823