Three-pole dielectric resonator microwave bandpass active filter

Author

Madrangeas, B. ; Jarry, B. ; Guillon, P. ; Larroque, J. ; Theron, B. ; Parise, D.

Author_Institution

IRCOM, Limoges Univ., France

Volume

139

Issue

2

fYear

1992

fDate

4/1/1992 12:00:00 AM

Firstpage

205

Lastpage

207

Abstract

A lossless microwave dielectric resonator (DR) active filter is presented. Equivalent circuits for a dielectric resonator coupled to a microstrip line or to another dielectric resonator are developed from an electromagnetic analysis. With the overall electrical model of the passive and active filters described by a microwave CAD program, simulations and sensitivity analysis can be obtained. In the active filter circuit a feedback active loop (composed of a variable gain amplifier and a phase shifter) is coupled to the central DR of the passive filter to compensate for its losses. Measurements of temperature performance, power handling, third-order intermodulation product and noise level are included

Keywords

active filters; band-pass filters; dielectric resonators; equivalent circuits; feedback; intermodulation; microwave filters; sensitivity analysis; strip line components; CAD program; dielectric resonator; electromagnetic analysis; equivalent circuits; feedback active loop; microstrip line; microwave bandpass active filter; noise level; phase shifter; power handling; sensitivity analysis; simulations; temperature performance; third-order intermodulation product; three pole filter; variable gain amplifier;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings H

Publisher

iet

ISSN

0950-107X

Type

jour

Filename

129312