Talks and Poster Presentations (with Proceedings-Entry):
A. Grebennikov, B. Sogl, H. Herrmann, C. Roth, W. Thomann:
"High-Efficiency Balanced Switched-Path Monolithic SiGe HBT Power Amplifiers for Wireless";
Talk: 37nd European Microwave Conference 2007 (EuMC 2007),
München;
2007-10-08
- 2007-10-12; in: "Proceedings of the 37th European Microwave Conference",
(2007),
ISBN: 978-2-87487-001-9;
1189
- 1192.
English abstract:
Modern wireless telecommunication systems require high-efficient, linear, low cost and long talk-time solutions. The proposed novel balanced circuit for power amplifiers provides a high efficiency at maximum as well as backoff output power levels and low sensitivity to load variations. To minimize the quiescent current at low output power levels, an adaptive current-mirror bias circuit can be effectively used. Experimental results for highly efficient, linear, multi-band and multimode, two-stage, balanced switched-path SiGe HBT power amplifiers, intended to operate across the DCS1800, PCS1900, WCDMA850/1900/2100 frequency bands, exhibit a peak poweradded efficiency of >= 50% at 33 dBm and >= 20% at 16 dBm of output power with a minimum quiescent current of 12 mA.
Electronic version of the publication:
http://publik.tuwien.ac.at/files/pub-et_13216.pdf
Created from the Publication Database of the Vienna University of Technology.