Title :
A low-power CMOS power amplifier for ultra wideband (UWB) applications
Author :
Jose, Sajay ; Lee, Hyung-Jin ; Ha, Dong ; Choi, Sang S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Virginia Tech, Blacksburg, VA, USA
Abstract :
This paper presents the design and implementation of a wideband power amplifier for UWB applications, covering the lower band frequencies of 3.1 GHz to 4.8 GHz. To achieve sufficient linearity and efficiency, this PA operates in the class-AB regime, delivering an output power of -4.2 dBm at an input 1 dB compression point of -22 dBm for a 4 GHz signal. This PA has a differential input and a single-ended output that has been matched to 50 Ω at both ends. Complete design and implementation was done using TSMC 0.18 μm CMOS technology and it consumes a very low power of 25 mW, while realizing a flat gain of 19±1 dB across the whole band of operation.
Keywords :
CMOS analogue integrated circuits; MMIC power amplifiers; integrated circuit design; low-power electronics; power consumption; transceivers; ultra wideband communication; wideband amplifiers; 0.18 micron; 18 to 20 dB; 25 mW; 3.1 to 4.8 GHz; CMOS technology; UWB applications; class-AB regime; compression point; differential input; integrated transceiver; low power; low-power CMOS power amplifier; output power; single-ended output; ultra wideband applications; wideband power amplifier; Application software; Broadband amplifiers; CMOS technology; Circuits; Energy consumption; Feedback; Radio frequency; Radiofrequency amplifiers; Transceivers; Ultra wideband technology; CMOS; RF transceivers; UWB; low power; power amplifier;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465784
