Solving the Approximation Problem for Narrowband Bandpass Filters with Equal-Ripple Passband Response and Arbitrary Phase Response

Author

Wenzel, R.J.

Author_Institution

Wavecom, Northridge, CA, USA

fYear

1975

fDate

12-14 May 1975

Firstpage

50

Lastpage

50

Abstract

A practical method is presented for solving the approximation problem for narrowband bandpass filters with equal-ripple passband response and arbitrary phase response. The method determines the element values of the low-pass prototype filter and is based on the use of generalized Chebyshev rational functions with arbitrary choice of transmission zero locations. The use of both real frequency and complex frequency trans- mission zero locations is considered. Results of trial design problems are presented and are related to previous design results to illustrate practical realization and performance limitations.

Keywords

approximation theory; band-pass filters; approximation problem; arbitrary phase response; complex frequency transmission zero location; equal-ripple passband response; generalized Chebyshev rational functions; low-pass prototype filter; narrowband bandpass filters; Attenuation; Band pass filters; Chebyshev approximation; Couplings; Filtering theory; Frequency; Microwave filters; Narrowband; Passband; Prototypes;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium, 1975 IEEE-MTT-S International

Conference_Location

Palo Alton, CA

Type

conf

DOI

10.1109/MWSYM.1975.1123276

Filename

1123276