Double ridged waveguide phase shifters for broadband applications

Author

El-Sharawy, El-Badawy

Author_Institution

Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA

Volume

41

Issue

12

fYear

1993

fDate

12/1/1993 12:00:00 AM

Firstpage

2161

Lastpage

2165

Abstract

The author presents an electromagnetic mode matching analysis of dual ridged waveguide phase shifters. The waveguide is loaded with a high dielectric material between the ridges, and the troughs are filled with ferrite toroids. The present structure offers nearly twice the bandwidth and less variation in nonreciprocity versus frequency as compared to the conventional dual toroidal phase shifter. An optimum design that maximizes nonreciprocity has been found. Effects of the dielectric constant and the trough dimensions are also presented. A differential phase shift of more than 100°/cm has been predicted for the new phase shifter

Keywords

dielectric-loaded waveguides; ferrite applications; permittivity; phase shifters; waveguide components; waveguide theory; broadband applications; dielectric constant; double ridged waveguide; dual ridged waveguide; electromagnetic mode matching analysis; ferrite toroids; high dielectric material; nonreciprocity; optimum design; phase shifters; trough dimensions; Bandwidth; Dielectric constant; Dielectric materials; Electromagnetic analysis; Electromagnetic scattering; Electromagnetic waveguides; Ferrites; Frequency; Loaded waveguides; Phase shifters;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.260701

Filename

260701