A novel coupled method for dual-mode dielectric resonators and waveguide filters

Author

Chen, Seng-Woon ; Zaki, Kawthar A.

Author_Institution

Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA

Volume

38

Issue

12

fYear

1990

fDate

12/1/1990 12:00:00 AM

Firstpage

1885

Lastpage

1893

Abstract

A novel method for coupling dual-mode waveguide or dielectric resonator cavities is described and analyzed. The method has advantages of providing a practical, flexible, economic means of replacing irises, of offering easy tunability of the coupling over a wide range of coupling values, and of reducing the length of the coupling structure. Calculation of the resonator´s coupling parameters using the mode-matching method yields accurate results and is verified by measurements. Experimental four-pole dual-mode elliptic function filters using the coupling method for empty cavities and dielectric-resonator-loaded cavities were constructed and tested. The test results showed excellent agreement with theoretical analysis

Keywords

dielectric resonators; equivalent circuits; microwave filters; passive filters; waveguide components; waveguide couplers; coupled method; dielectric-resonator-loaded cavities; dual-mode dielectric resonators; elliptic function filters; mode-matching method; waveguide filters; Costs; Dielectric measurements; Fasteners; Iris; Magnetic analysis; Magnetic field measurement; Production; Resonator filters; Testing; Waveguide discontinuities;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.64570

Filename

64570