Miniaturized lumped-distributed narrowband ring filter design

Author

Suwanbunyaporn, Ratthaya ; Jirathiticharoen, Amornthep ; Phromloungsri, Ravee ; Chongcheawchamnan, Mitchai

Author_Institution

Res. Center of Electromagn. Wave Applic., Mahanakorn Univ. of Technol., Bangkok

Volume

1

fYear

2008

fDate

14-17 May 2008

Firstpage

237

Lastpage

240

Abstract

A miniaturized narrowband bandpass filter with wide stopband is needed for communication application, therefore a microstrip inductive-compensated coupling-fed ring bandpass filter with a lumped lowpass filterd in loop resonator is proposed. Simple equations for filter design procedure are derived based on ideal transmission line model. To confirm the technique, a narrowband bandpass filter operated at 2.4 GHz with a 5% bandwidth and wide stopband is designed. Simulated and experimental results of the design are performed to validate the technique proposed.

Keywords

band-pass filters; microstrip filters; resonator filters; frequency 2.4 GHz; loop resonator; lumped lowpass filter; lumped-distributed narrowband ring filter; microstrip inductive-compensated coupling-fed ring bandpass filter; ring bandpass filter; Band pass filters; Bandwidth; Feeds; Low pass filters; Microstrip filters; Microstrip resonators; Narrowband; Optical ring resonators; Passband; Resonator filters; Lowpass filter; Parallel-coupled lines; Ring bandpass filter; coupled line resonator; microstrip;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2008. ECTI-CON 2008. 5th International Conference on

Conference_Location

Krabi

Print_ISBN

978-1-4244-2101-5

Electronic_ISBN

978-1-4244-2102-2

Type

conf

DOI

10.1109/ECTICON.2008.4600416

Filename

4600416