Paper Title:
Architecture of Wideband High-Efficiency Envelope Tracking Power Amplifier for Base Station
  Abstract

This paper proposes new architectures for envelope-tracking power supplies for base stations. (1) The proposed multiphase DC-DC converter circuit uses multiple switching circuits with hysteresis comparators (as well as a voltage follower circuit), each optimized for a different envelope frequency, to realize both high efficiency and wide bandwidth. (2) We also propose the one using interleaved PWM switching circuits. The operation of the circuits, and simulation results, are described.

  Info
Periodical
Edited by
Osamu Hanaizumi and Masafumi Unno
Pages
241-251
DOI
10.4028/www.scientific.net/KEM.459.241
Citation
M. Kaneta, A. Kanbe, H. Hirata, T. Shimura, K. Yamagishi, H. Kobayashi, "Architecture of Wideband High-Efficiency Envelope Tracking Power Amplifier for Base Station", Key Engineering Materials, Vol. 459, pp. 241-251, 2011
Online since
December 2010
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