A High-Resolution UWB IR Superregenerative Receiver Front End With an SRD Quench Shaper

We present a simple receiver front end that makes use of the baseband superregeneration principle to detect ultrawideband (UWB) impulse radio signals. The UWB antenna is directly connected to the core circuit consisting of a resistor-capacitor (RC) network coupled to a negative resistance that varie...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2012-02, Vol.59 (2), p.93-97
Main Authors: Moncunill Geniz, Francesc Xavier, Bonet Dalmau, Jordi, Palà Schönwälder, Pere, Águila López, Francisco del, Giralt Mas, Ma. Rosa
Format: Article
Language:English
Subjects:
Antenes de microones
Antenes i agrupacions d'antenes
Antenna measurements
Antennas
Antennas (Electronics)
Binary phase shift keying
Circuit stability
Enginyeria de la telecomunicació
Generators
impulse radio (IR)
low-power design
Mesurament
Microones
Microwave measurements
radio receivers
Radiocomunicació i exploració electromagnètica
Receivers
Sensitivity
step recovery diode (SRD)
superregenerative receiver
ultrawideband (UWB) communication
Àrees temàtiques de la UPC
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Summary:We present a simple receiver front end that makes use of the baseband superregeneration principle to detect ultrawideband (UWB) impulse radio signals. The UWB antenna is directly connected to the core circuit consisting of a resistor-capacitor (RC) network coupled to a negative resistance that varies under the control of an external quench generator. Due to a step-recovery-diode quench shaper, 50-ps time-domain sensitivity windows are generated that filter the received pulses and reject noise and interference. The circuit achieves high gain, exhibits automatic gain control, and directly demodulates binary phase modulations.
ISSN:1549-7747
1558-3791
DOI:10.1109/TCSII.2012.2184373