POWER AMPLIFICATION DEVICE, RADIO REMOTE UNIT, AND BASE STATION

Title:

POWER AMPLIFICATION DEVICE, RADIO REMOTE UNIT, AND BASE STATION

Document Type and Number:

WIPO Patent Application WO/2018/137185

Kind Code:

A1

Abstract:

A power amplification device, a radio remote unit, and a base station, for use in improving the power amplification efficiency. The power amplification device comprises an envelope modulator (201), a main power amplifier (202), and a first auxiliary power amplifier (203). The envelope modulator (201) is connected to a drain of the main power amplifier (202) and is used for obtaining an envelope voltage according to a received envelope signal and outputting the envelope voltage to the drain of the main power amplifier (202). The main power amplifier (202) is used for amplifying a signal input by a gate of the main power amplifier (202), using the envelope voltage received from the envelope modulator (201) as a working voltage by means of the connection to the envelope modulator (201), and outputting the envelope voltage to a drain of the first auxiliary power amplifier (203) by means of the connection to the first auxiliary power amplifier (203). The first auxiliary power amplifier (203) amplifies a signal input by a gate of the first auxiliary power amplifier (203) and for using the envelop voltage received from the main power amplifier (202) as a working voltage by means of the connection to the main power amplifier (202).

Inventors:

ZHANG SHUNZHONG (CN)
ZHANG LIPENG (CN)
CAI ZHONGHUA (CN)

Application Number:

PCT/CN2017/072652

Publication Date:

August 02, 2018

Filing Date:

January 25, 2017

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H03F3/20

Domestic Patent References:

WO2014069451A1

2014-05-08

Foreign References:

CN103430603A	2013-12-04
US20110018628A1	2011-01-27
CN101527545A	2009-09-09

Other References: