A new semi-lumped microwave filter structure

Author

Sheta, Abdel Fattah ; Hettak, Khelifa ; Coupez, J.P. ; Person, C. ; Toutain, S. ; Blot, J.P.

Author_Institution

LEST, Ecole Nat. Superieure des Telecommun. de Bretagne, Brest, France

fYear

1995

fDate

16-20 May 1995

Firstpage

383

Abstract

A novel narrow-band microwave filter structure is presented. The merit of this circuit lies in the simplicity of design formulas readily applicable to narrow-band filters. The structure can be realized in planar or uniplanar technology. The design formulas yield good results for bandwidths lower than 10%. Bandpass filter with 4% relative bandwidth at 3 GHz was designed with the proposed theory and then implemented in both microstrip and coplanar technologies. Experimental results show good agreement with theoretical predictions.<>

Keywords

band-pass filters; coplanar waveguides; lumped parameter networks; microstrip filters; microwave filters; passive filters; 3 GHz; bandpass filter; coplanar technology; design formulas; microstrip technology; narrowband microwave filter; planar technology; semilumped microwave filter structure; uniplanar technology; Band pass filters; Bandwidth; Capacitance; Circuits; Dielectric substrates; Impedance; Inverters; Microwave filters; Narrowband; Resonator filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1995., IEEE MTT-S International

Conference_Location

Orlando, FL, USA

ISSN

0149-645X

Print_ISBN

0-7803-2581-8

Type

conf

DOI

10.1109/MWSYM.1995.405964

Filename

405964