Optimized E-plane bandpass filters with improved stopband performance

Author

Budimir, Djuradj

Author_Institution

Dept. of Electron. & Electr. Eng., King´´s Coll., London, UK

Volume

45

Issue

2

fYear

1997

fDate

2/1/1997 12:00:00 AM

Firstpage

212

Lastpage

220

Abstract

A computer-aided synthesis technique for E-plane bandpass filters with improved stopband performance is developed. An optimization procedure based on equal ripple optimization is adopted. The design of a symmetrical E-plane bandpass filter with improved stopband performance is considered; higher order mode interaction between E-plane discontinuities is included in the design. The predicted filter performance shows improved stopband performance and reduced filter dimensions compared with conventional E-plane bandpass filters. The validity of the method is confirmed by the measurement of a fabricated five resonator E-plane bandpass filter with improved stopband performance

Keywords

band-pass filters; circuit CAD; circuit optimisation; microwave filters; resonator filters; waveguide discontinuities; waveguide filters; E-plane bandpass filters; E-plane discontinuities; computer-aided synthesis technique; equal ripple optimization; five resonator E-plane bandpass filter; higher order mode interaction; microwave filter; optimization procedure; rectangular waveguide sections; reduced filter dimensions; stopband performance; symmetrical E-plane bandpass filter design; Attenuation; Band pass filters; Costs; Cutoff frequency; Millimeter wave measurements; Millimeter wave technology; Passband; Rectangular waveguides; Resonance; Resonator filters;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.557602

Filename

557602