Chebyshev Synthesis for Multi-Band Microwave Filters

Author

Bila, S. ; Cameron, R.J. ; Lenoir, P. ; Lunot, V. ; Seyfert, F.

Author_Institution

AIRCOM

fYear

2006

fDate

11-16 June 2006

Firstpage

1221

Lastpage

1224

Abstract

In this paper, a new method for the synthesis of (possibly) asymmetric dual-band or multi-band filters is presented. The latter generalizes the classical Chebyshev synthesis in that it computes the optimal solution of a max-min optimization problem specified in terms of the filtering function of the usual low-pass prototype. The computational part of the method consists of a Remez type exchange algorithm. As an example the design of a dual-band filter from asymmetric specifications for the SPOT5 spacecraft is considered, and yields a 7th degree filter that replaces advantageously the usual solution made out of 2 separate filters "diplexed" by means of waveguide junctions at their input/output ports

Keywords

Chebyshev filters; circuit optimisation; low-pass filters; microwave filters; minimax techniques; Chebyshev synthesis; Remez type exchange algorithm; SPOT5 spacecraft; asymmetric dual-band filter; low-pass prototype; max-min optimization; multi-band filter; multi-band microwave filters; Band pass filters; Chebyshev approximation; Circuit synthesis; Dual band; Filtering theory; Microwave filters; Microwave theory and techniques; Passband; Polynomials; Prototypes; Chebyshev synthesis; Remez Exchange algorithm; dual-band filter; filter synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2006. IEEE MTT-S International

Conference_Location

San Francisco, CA

ISSN

0149-645X

Print_ISBN

0-7803-9541-7

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2006.249430

Filename

4015142