Search International and National Patent Collections

1. (WO2018195843) MULTI-CHANNEL DOHERTY AMPLIFIER, MULTI-ANTENNA TRANSMITTER, AND METHOD FOR TURNING ON THE MULTI-CHANNEL DOHERTY AMPLIFIER

Pub. No.:    WO/2018/195843    International Application No.:    PCT/CN2017/082139
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Fri Apr 28 01:59:59 CEST 2017
IPC: H03F 1/07
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
WANG, Zhancang
Inventors: WANG, Zhancang
Title: MULTI-CHANNEL DOHERTY AMPLIFIER, MULTI-ANTENNA TRANSMITTER, AND METHOD FOR TURNING ON THE MULTI-CHANNEL DOHERTY AMPLIFIER
Abstract:
Embodiments of the disclosure generally relate to a multi-channel Doherty power amplifier, a multi-antenna transmitter, and a method for turning on the multi-channel Doherty amplifier. The multi-channel Doherty power amplifier includes: multiple input ports and the same number of output ports corresponding to multiple channels, the multiple channels having the same characteristics for radio signal amplification and transmission; multiple private peaking amplifiers corresponding to the multiple channels; and a common Doherty core shared by the multiple private peaking amplifiers. The multiple private peaking amplifiers and the common Doherty core are configured to amplify identical multi-channel signal for multiple inputs and multiple outputs, thus higher saving ratio and better channel performance (output power, linearity, efficiency, power gain etc. ) consistency would be greatly improved.