Title :
A power-efficient CMOS UWB signal-generation module
Author :
Xu, Rui ; Jin, Yalin ; Nguyen, Cam
Author_Institution :
Texas A&M Univ., College Station
Abstract :
This paper presents a new carrier-based ultra-wideband (UWB) transmitter architecture and its CMOS implementation. The new transmitter topology adopts a double-stage switching to enhance RF-power efficiency, reduce dc-power consumption and circuit complexity. Fabricated using a 0.18-mum CMOS process, the UWB signal generation module includes an UWB sub-nanosecond-switching single-pole single-throw (SPST) switch and a tunable impulse generator. Measurement results show that the generated UWB signal has variable 10-dB signal bandwidths from 0.5 to 4 GHz and tunable central frequency covering the entire UWB frequency range of 3.1 to 10.6 GHz. The CMOS module consumes less than 2 mW DC power. The proposed carrier-based UWB transmitter and the demonstrated module provide an attractive means for UWB signal generation for both UWB communications and radar applications.
Keywords :
CMOS integrated circuits; microwave switches; pulse generators; radio transmitters; ultra wideband communication; ultra wideband radar; UWB communication; UWB subnanosecond-switching single-pole single-throw switch; carrier-based ultra wideband transmitter; double-stage switching; frequency 0.5 GHz to 10.6 GHz; power-efficient CMOS UWB signal-generation module; radar application; size 0.18 mum; tunable impulse generator; CMOS process; Circuit topology; Complexity theory; Frequency; Signal generators; Switches; Switching circuits; Transmitters; Tunable circuits and devices; Ultra wideband technology;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4395495