A Wide-Band Bandpass Filter Using the Properties of Microstrip Open-Loop Resonator with Spurious Response Suppression

Author

Chaiyawong, Kobkhun ; Konpang, Jessada

Author_Institution

Dept. of Electron., Rajamangala Univ. of Technol. Isan, Sakhonnakhon

fYear

2008

Firstpage

200

Lastpage

203

Abstract

In his paper, a wide-band bandpass filter using the properties of microstrip open-loop resonator with spurious response suppression is proposed to develop the square loop wide-band bandpass filter with tuning stubs. The filter is based on square loop resonator consists of four identical branches with attached to inner and outer corner of the square loop. The introduction of two tuning stubs connecting opposite to the ports widens the passband and sharpens the stopbands. A prototype filter is designed at 2.45 GHz with 36% fractional bandwidth and 0.38 dB insertion loss. It is very useful for applications in the wireless communication systems.

Keywords

band-pass filters; broadband networks; microstrip resonators; microwave filters; radiocommunication; frequency 2.45 GHz; microstrip open-loop resonator property; spurious response suppression; square loop wide-band bandpass filter; wireless communication systems; Band pass filters; Bandwidth; Insertion loss; Joining processes; Microstrip filters; Microstrip resonators; Passband; Prototypes; Resonator filters; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technologies, 2008. ISCIT 2008. International Symposium on

Conference_Location

Lao

Print_ISBN

978-1-4244-2335-4

Electronic_ISBN

978-1-4244-2336-1

Type

conf

DOI

10.1109/ISCIT.2008.4700182

Filename

4700182