DocumentCode
2064705
Title
Adaptive biasing for UMTS power amplifiers
Author
Grillo, Giuseppe ; Cristaudo, Domenico
Author_Institution
Philips Res. Labs., Eindhoven, Netherlands
fYear
2004
fDate
13-14 Sept. 2004
Firstpage
188
Lastpage
191
Abstract
An innovative technique for the biasing of power amplifiers (PAs) is presented that allows reduction of the DC power consumption, especially when the PA is operated at mid/low output power, without compromising the linearity at high output power level. The fully integrated adaptive biasing circuit, in 0.5 μm BICMOS technology, senses the operating PA power and adjusts its quiescent current accordingly. The method is applied to a UMTS PA, resulting in a power consumption saving of about 70% when compared to conventional biasing solutions.
Keywords
3G mobile communication; BiCMOS analogue integrated circuits; UHF power amplifiers; low-power electronics; 0.5 micron; BICMOS technology; DC power consumption reduction; PA adaptive biasing; PA linearity; PA quiescent current control; UMTS power amplifiers; 3G mobile communication; Current supplies; Driver circuits; Energy consumption; High power amplifiers; Laboratories; Linearity; Power amplifiers; Power dissipation; Power generation;
fLanguage
English
Publisher
ieee
Conference_Titel
Bipolar/BiCMOS Circuits and Technology, 2004. Proceedings of the 2004 Meeting
Print_ISBN
0-7803-8618-3
Type
conf
DOI
10.1109/BIPOL.2004.1365776
Filename
1365776
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