Bandpass filter design using an open-loop defected ground structure resonator

Author

Vágner, Petr ; Kasal, Miroslav

Author_Institution

Dept. of Radio Electron., Brno Univ. of Technol., Brno, Czech Republic

fYear

2010

fDate

19-21 April 2010

Firstpage

77

Lastpage

80

Abstract

This paper deals with a bandpass filter design using defected ground structure (DGS). An open-loop slot resonator is investigated and its parameters are extracted. After that, a bandpass filter is designed using coupled DGS and microstrip resonators. The combination of DGS and microstrip resonators allows use top and bottom side of the microwave substrate, therefore the resonators can partially overlap and desired coupling coefficient can be easily achieved. Finally, a sixth order BPF is designed, fabricated and measured.

Keywords

band-pass filters; defected ground structures; microstrip resonators; bandpass filter; coupled DGS; defected ground structure resonator; microstrip resonator; microwave substrate; open-loop slot resonator; Band pass filters; Feeds; Microstrip filters; Microstrip resonators; Microwave filters; Microwave technology; Microwave theory and techniques; Q factor; Resonant frequency; Resonator filters; DGS resonator; Defected ground structure (DGS); bandpass filter; half-wavelength microstrip resonator; open-loop resonator; slot resonator;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Techniques (COMITE), 2010 15th International Conference on

Conference_Location

Brno

Print_ISBN

978-1-4244-6341-1

Type

conf

DOI

10.1109/COMITE.2010.5481276

Filename

5481276