Compact microstrip triplexer based on coupled stepped impedance resonators

Author

Hung-Wei Wu ; Shih-Hua Huang ; Yu-Fu Chen

Author_Institution

Kun-Shan Univ., Tainan, Taiwan

fYear

2013

fDate

2-7 June 2013

Firstpage

1

Lastpage

3

Abstract

A new compact microstrip triplexer (2.4 / 3.5 / 5.8 GHz) using the coupled stepped impedance resonators (SIRs) is proposed. The triplexer is composed of three pairs of coupled SIRs with impedance ratio (K <; 1) and the source-load coupling lines. The resonant peaks can be easily determined by tuning the impedance ratio (K) and length ratio (α) of the SIRs so as to implement a 2-order bandpass filter individually. The source-load coupling lines are designed to correspond to the quarter-wavelength at the center frequency for each channel. The proposed triplexer is showing a simple configuration, an effective design method and a small circuit size.

Keywords

band-pass filters; coupled circuits; microstrip resonators; microwave resonators; multiplexing equipment; 2-order bandpass filter; compact microstrip triplexer; coupled SIRs; coupled stepped impedance resonators; design method; frequency 2.4 GHz; frequency 3.5 GHz; frequency 5.8 GHz; impedance ratio tuning; length ratio tuning; source-load coupling lines; Software; bandpass filter; source-load coupling; stepped impedance resonator (SIR); triplexer;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International

Conference_Location

Seattle, WA

ISSN

0149-645X

Print_ISBN

978-1-4673-6177-4

Type

conf

DOI

10.1109/MWSYM.2013.6697516

Filename

6697516