Title :
Low-power UWB transmitter using a combined mixer and power amplifier
Author :
Solda, S. ; Caruso, M. ; Vogrig, D. ; Bevilacqua, A. ; Gerosa, A. ; Neviani, A.
Author_Institution :
Dept. of Inf. Eng., Univ. of Padova, Padova, Italy
fDate :
May 30 2010-June 2 2010
Abstract :
This paper presents an energy-efficient transmitter for UWB impulse-radio. The proposed circuit uses a novel combined mixer and power amplifier to generate a Gaussian pulse with 1.25GHz bandwidth and center frequency of 7.87GHz. The combined MXR-PA includes a monolithic transformer to reach a maximum output voltage swing of 3.2Vpp. The transformer has been designed so as to maximize the transmitter power efficiency and at the same time to realize a fourth-order ladder filter, in order to reduce out-of band emissions. The transmitter has been implemented in a 0.13μm CMOS technology, occupies an area of 0.14mm2 and dissipates 1.92mW for a 10-pulse burst with 1.2V power supply.
Keywords :
ladder filters; power amplifiers; ultra wideband communication; wireless sensor networks; CMOS technology; Gaussian pulse; MXR-PA; UWB impulse radio; combined mixer; energy efficient transmitter; fourth-order ladder filter; low power UWB transmitter; monolithic transformer; power amplifier; transmitter power efficiency; Bandwidth; CMOS technology; Energy efficiency; Power amplifiers; Power generation; Pulse amplifiers; Pulse circuits; Pulse generation; Pulse transformers; Transmitters;
Conference_Titel :
Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5308-5
Electronic_ISBN :
978-1-4244-5309-2
DOI :
10.1109/ISCAS.2010.5537807
