Title :
New architecture for envelope-tracking power amplifier for base station
Author :
Kanbe, Akihiro ; Kaneta, Masato ; Yui, Fuminori ; Kobayashi, Haruo ; Takai, Nobakazu ; Shimura, Tastsuhiro ; Hirata, Hitoshi ; Yamagishi, Kentarou
Author_Institution :
Grad. Sch. of Eng., Gunma Univ., Maebashi
fDate :
Nov. 30 2008-Dec. 3 2008
Abstract :
This paper proposes a new architecture for envelope-tracking power supplies for base stations. The proposed multiphase DC-DC converter circuit uses multiple switching circuits (as well as a voltage follower circuit), each optimized for a different envelope frequency, to realize both high efficiency and wide bandwidth. The operation of the circuit, and simulation results, are described.
Keywords :
DC-DC power convertors; power amplifiers; radiocommunication; signal processing; telecommunication power supplies; base station; envelope tracking power amplifier; envelope tracking power supply; multiphase DC-DC converter circuit; multiple switching circuits; Bandwidth; Base stations; Circuit simulation; DC-DC power converters; Frequency conversion; Power amplifiers; Power supplies; Switching circuits; Switching converters; Voltage; Base station; Efficiency; Envelope tracking; Power supply;
Conference_Titel :
Circuits and Systems, 2008. APCCAS 2008. IEEE Asia Pacific Conference on
Conference_Location :
Macao
Print_ISBN :
978-1-4244-2341-5
Electronic_ISBN :
978-1-4244-2342-2
DOI :
10.1109/APCCAS.2008.4746018
