A RX cancellation loop configuration for power amplifier module

Author

Jeong, Yong-Chae ; Park, Jun-Seok ; Ahn, Dal ; Lim, Jae-Bong

Author_Institution

Div. of Electron. & Inf., Chonbuk Nat. Univ., Chonju, South Korea

Volume

3

fYear

2001

fDate

2001

Firstpage

1199

Abstract

A cancellation loop configuration for power amplifier modules is proposed to reject RX signals using a feed-forward technique. In this paper, we implement the 1W-amplifier module to show the validity of the proposed cancellation loop. The power amplifier module can provide low TX insertion path loss due to its duplexer and the choice of loose RX attenuation characteristics for various wireless communication systems. It shows at least 90 % improved RX rejection characteristics compared to power amplifier modules without the RX band cancellation loop

Keywords

UHF power amplifiers; band-pass filters; feedforward; interference suppression; linearisation techniques; 1 W; RX bandpass filter; RX cancellation loop configuration; RX signal rejection; duplexer; feed-forward linearizer; feed-forward technique; loose RX attenuation characteristic; low TX insertion path loss; power amplifier module; wireless communication systems; Attenuation; Band pass filters; Costs; Feedforward systems; Phase distortion; Power amplifiers; Power generation; Radio frequency; Radiofrequency amplifiers; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific

Conference_Location

Taipei

Print_ISBN

0-7803-7138-0

Type

conf

DOI

10.1109/APMC.2001.985348

Filename

985348