Novel adaptive predistortion technique for cross coupled filters

Author

Ming Yu ; Dokas, V. ; Wai Cheung Tang ; Cameron, R.

Author_Institution

COM DEV Int., Cambridge, Ont., Canada

Volume

2

fYear

2003

Firstpage

929

Abstract

This paper presents a novel adaptive predistortion technique for general cross-coupled microwave/RF filters with improved insertion loss and group delay equalization. The method enables many potential applications of an almost abandoned technique, especially using a lower Q design to emulate the performance of a higher Q filter. A 10-4-4 coaxial filter was built to verify the validity of the new method. The technique should lead to practical applications such as satellite transponder input multiplexers.

Keywords

Q-factor; coaxial waveguides; delays; distortion; losses; microwave filters; passive filters; radiofrequency filters; resonator filters; waveguide filters; RF filters; adaptive predistortion technique; coaxial filter; cross-coupled filters; group delay equalization; insertion loss; microwave filters; satellite transponder input multiplexers; Adaptive equalizers; Adaptive filters; Coaxial components; Delay; Insertion loss; Microwave filters; Microwave theory and techniques; Predistortion; Radio frequency; Satellites;

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.2003.1212521

Filename

1212521