A microstrip bandpass filter using a symmetrical parallel coupled-line structure

Author

Jantree, Jaruek ; Kerdsumang, Sithipom ; Akkaraekthalin, Prayoot

Author_Institution

Dept. of Electron., Rajamangala Inst. of Technol., Suphanburi, Thailand

Volume

2

fYear

2003

fDate

21-24 Sept. 2003

Firstpage

784

Abstract

This research proposes a new symmetrical bandpass filter structure based on micro strip parallel coupled-lines. Two bandpass filters have been computerized designed at the operating frequency about 1.9 GHz. Good agreement of experiment results and simulations have been obtained with low passband insertion loss (less than 1.5 dB) and high return loss (higher than 30 dB)at the center frequency. The proposed filters have small size, low insertion loss, high return loss and high rejection band, therefore they may be suitable for wireless communications.

Keywords

band-pass filters; microstrip couplers; microstrip filters; microstrip lines; filter frequency; high rejection band; microstrip bandpass filter; passband high return loss; passband insertion loss; symmetrical parallel coupled-line structure; wireless communication; Band pass filters; Coaxial components; Coupling circuits; Distributed parameter circuits; Insertion loss; MMICs; Microstrip filters; Power transmission lines; Radio frequency; Resonator filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2003. APCC 2003. The 9th Asia-Pacific Conference on

Print_ISBN

0-7803-8114-9

Type

conf

DOI

10.1109/APCC.2003.1274466

Filename

1274466