Two kinds of dual-band power amplifier matching networks using three-section microstrip line

Author

Shifeng Pei ; Jingchang Nan ; Yun Qu

Author_Institution

Liaoning Technial Univ., Huludao, China

fYear

2012

fDate

22-26 Oct. 2012

Firstpage

702

Lastpage

705

Abstract

This paper presents two kinds of dual-band power amplifier matching networks, which using three-section microstrip line. Based on the analysis of transmission line theory, two matching networks used in dual-band amplifier are introduced: Multi-section Transmission Line (MSTL) and Open Stub Transmission Line (OSTL). After a series of calculations and simulation, those two structures have been successfully designed. In order to prove that the structures are applicable to the dual-band power amplifier, a dual-band power amplifier using those structures is proposed. Based on experimental results, the amplifier, which works at 915MHz and 2140MHz, achieves efficiency of more than 60%. When input power is 30dBm, with output of 46dBm, the gain compressed is 1.8dB at 2140HMz and 2.2dB at 915HMz.

Keywords

UHF power amplifiers; microstrip lines; transmission line theory; MSTL; OSTL; dual-band power amplifier matching network; frequency 2140 MHz; frequency 915 MHz; gain 1.8 dB; gain 2.2 dB; multisection transmission line theory; open stub transmission line theory; three-section microstrip line; Dual band; Equations; Impedance; Mathematical model; Microstrip; Power amplifiers; Power transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas, Propagation & EM Theory (ISAPE), 2012 10th International Symposium on

Conference_Location

Xian

Print_ISBN

978-1-4673-1799-3

Type

conf

DOI

10.1109/ISAPE.2012.6408867

Filename

6408867