Design of a RF fixed phase control circuit using adaptive vector control

Author

Jeong, Se Woong ; Oh, In-Ju ; Jeong, Yong-Chae ; Kim, Young

Author_Institution

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

Volume

3

fYear

2001

fDate

2001

Firstpage

1195

Abstract

For conventional feedforward type delay lines, phase variation with external temperature has not been considered. This phase variation is the main cause of low linearizer efficiency. In this paper, a new type of vector phase controller using a vector theory is proposed to solve the problem of delay line phase variation. As a result, when the input signal consists of one or two with a phase variation of ±10° in a 10 dB dynamic range, the phase of the delay line is changed within 0.35° and amplitude is changed by less than 0.07 dB

Keywords

UHF phase shifters; UHF power amplifiers; delay lines; feedforward; linearisation techniques; phase control; vectors; 877 MHz; 882 MHz; RF fixed phase control circuit design; adaptive vector control; analog controlled feedforward linearizer; analog controlled linear power amplifier; delay line phase variation; linear power amplifier; linearizer efficiency; reflective phase shifter; vector phase controller; Adaptive control; Circuits; Delay lines; Equations; High power amplifiers; Insertion loss; Phase control; Programmable control; Radio frequency; Temperature;

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.2001.985347

Filename

985347