A novel microstrip bandpass filter using triangular open-loop resonators

Author

Chaimool, Sarawuth ; Kerdsumang, Sithipom ; Akkaraekthalin, Prayoot

Author_Institution

Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand

Volume

2

fYear

2003

fDate

21-24 Sept. 2003

Firstpage

788

Abstract

This paper proposes a new four-pole bandpass filter based on the triangular open-loop resonators structure. The full-wave simulator IE3D has been employed for designing the resonators, and calculating the related coupling coefficients of each resonator pair. The proposed filter circuit has been then finally constructed. It has been found that experimental results of the filter agree very well with simulation expectation. This filter also provides an improved selectivity characteristic with narrow bandwidth and compact size compared with the conventional resonator filters.

Keywords

band-pass filters; microstrip couplers; microstrip filters; microstrip resonators; cross-coupled structure; filter circuit; four-pole bandpass filter; full-wave simulator; microstrip bandpass filter; resonator coupling coefficient; resonator design; triangular open-loop resonator; Band pass filters; Bandwidth; Circuit simulation; Coupling circuits; Microstrip filters; Microstrip resonators; Prototypes; Q factor; Resonator filters; Superconducting 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.2003.1274467

Filename

1274467