Compact ridged waveguide filters with improved stopband performance

Author

Goussetis, G. ; Budimir, D.

Author_Institution

Wireless Commun. Res. Group, Westminster Univ., London, UK

Volume

2

fYear

2003

Firstpage

953

Abstract

A novel ridged waveguide bandpass filter configuration is proposed. The proposed filter has comparable size to standard E-plane filters while having suppressed spurious resonance. Compactness is achieved by taking advantage of the properties of slow waves in half wavelength resonators, while spurious behaviour suppression is achieved by means of an integrated lowpass structure. Periodicity is readily imposed by cascading ridge waveguides with rectangular waveguides. The structure is simple and compatible with E-plane technology. Numerical and experimental results are presented to validate the argument.

Keywords

band-pass filters; cavity resonator filters; low-pass filters; periodic structures; resonance; ridge waveguides; slow wave structures; waveguide filters; E-plane filters; bandpass filters; compact ridged waveguide filters; filter stopband performance; half wavelength resonators; integrated lowpass structures; periodic structures; rectangular waveguides; slow wave effects; spurious resonance suppression; Band pass filters; Dispersion; Microwave filters; Passband; Periodic structures; Rectangular waveguides; Resonance; Resonator filters; Waveguide components; Waveguide discontinuities;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2003 IEEE MTT-S International

Conference_Location

Philadelphia, PA, USA

ISSN

0149-645X

Print_ISBN

0-7803-7695-1

Type

conf

DOI

10.1109/MWSYM.2003.1212527

Filename

1212527