A two-step synthesis of broadband ridged waveguide bandpass filters with improved performances

Author

Nanan, J.-C. ; Tao, J.W. ; Baudrand, H. ; Theron, B. ; Vigneron, S.

Author_Institution

ENSEEIHT, Toulouse, France

fYear

1991

fDate

10-14 July 1991

Firstpage

547

Abstract

A quarter-wave broadband ridged waveguide bandpass filter with improved stopband attenuation has been designed and realized. A two-step design procedure associating Chebyshev´s formulas with a rigorous optimization routine is also presented. The predicted filter performances, including the rectangular to ridged waveguide transformer, agree well with the measurements, showing improved stopband attenuation and reduced filter dimension in the Ku band.<>

Keywords

band-pass filters; filtering and prediction theory; microwave filters; optimisation; passive filters; waveguide components; waveguide theory; Ku band; broadband filters; compact bandpass filters; evanescent mode waveguide filters; filter dimension; measurements; optimization routine; performances; quarter wave resonator waveguide filter; rectangular to ridged waveguide transformer; ridged waveguide bandpass filters; stopband attenuation; two-step design procedure; two-step synthesis; Attenuation measurement; Band pass filters; Design optimization; Frequency; Impedance; Inverters; Microwave filters; Performance evaluation; Resonator filters; Waveguide discontinuities;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1991., IEEE MTT-S International

Conference_Location

Boston, MA, USA

ISSN

0149-645X

Print_ISBN

0-87942-591-1

Type

conf

DOI

10.1109/MWSYM.1991.147059

Filename

147059