Title:
MULTI-GAIN MODE POWER AMPLIFIER, CHIP, AND COMMUNICATION TERMINAL
Document Type and Number:
WIPO Patent Application WO/2018/001380
Kind Code:
A1
Abstract:
A multi-gain mode power amplifier, a chip, and a communication terminal. The multi-gain mode power amplifier comprises at least one amplifier circuit. The amplifier circuit comprises a bias circuit, a feedback circuit, a transistor (101), and an input matching network/output matching network. A bias voltage or a control voltage (120) is adjusted to make the feedback circuit to be either turned on or turned off, thus allowing the amplifier circuit to work in a high-gain mode or a low-gain mode. The multi-gain mode power amplifier has different gain modes, fully satisfies the actual demand of the communication terminal to work in the high-gain mode when transmitting a high power and to work in the low-gain mode when transmitting a low power.
Inventors:
ZHAO JINXIN (CN)
Application Number:
PCT/CN2017/091341
Publication Date:
January 04, 2018
Filing Date:
June 30, 2017
Export Citation:
Assignee:
VANCHIP (TIANJIN) TECH CO LTD (CN)
International Classes:
H03G3/30
Foreign References:
| CN106169915A | 2016-11-30 | |||
| CN102969995A | 2013-03-13 | |||
| CN203261299U | 2013-10-30 | |||
| CN104917475A | 2015-09-16 | |||
| CN104753477A | 2015-07-01 | |||
| US20050270104A1 | 2005-12-08 |
Attorney, Agent or Firm:
BEIJING GENIUS ESSEN INTELLECTUAL PROPERTY OFFICE (CN)
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