Zolotarev bandpass filters

Author

Bell, H. Clark

Author_Institution

HF Plus, Chatsworth, CA, USA

Volume

49

Issue

12

fYear

2001

fDate

12/1/2001 12:00:00 AM

Firstpage

2357

Lastpage

2362

Abstract

Zolotarev rational functions may be used in certain bandpass filter applications for which two narrower passbands are required. Coupled-resonator low-pass prototypes for narrow bandpass filters based on even- and odd-degree Zolotarev functions are synthesized using a transformed variable. Compared to other filters, those with Zolotarev responses have sharper skirt selectivity, resulting in lower passband distortion

Keywords

Chebyshev approximation; Chebyshev filters; band-pass filters; elliptic filters; low-pass filters; microwave filters; passive filters; rational functions; resonator filters; Chebyshev filters; Zolotarev bandpass filter; Zolotarev rational functions; circuit synthesis; coupled-resonator low-pass prototypes; delay performance; elliptic filters; even-degree Zolotarev functions; lower passband distortion; narrower passbands; odd-degree Zolotarev functions; optimum equiripple; passive filters; resonator filters; skirt selectivity; transformed variable; Band pass filters; Chebyshev approximation; Filtering theory; Frequency; Function approximation; Low pass filters; Microwave filters; Passband; Passive filters; Resonator filters;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.971621

Filename

971621