Nonreciprocal coupling structure of a ferrite loaded dielectric image guide

Author

Kwan, P. ; How, H. ; Vittoria, C.

Author_Institution

Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

3222

Lastpage

3224

Abstract

A novel coupled image guide was designed and tested from 26.5 to 40 GHz. The nonreciprocal structure consisted of two dielectric image guides separated by a YIG/GGG ferrite film. Electromagnetic scattering matrix elements of the device were measured for the magnetic field applied perpendicular to the ferrite film plane. Nonreciprocal behavior in the scattering parameters was observed to be in agreement with analysis. The results indicated that various types of millimeter-wave passive devices could be realized in a planar geometry, such as isolators, filters, modulators, switches, and circulators

Keywords

dielectric waveguides; ferrite devices; ferrites; gadolinium compounds; garnets; waveguide components; yttrium compounds; 26.5 to 40 GHz; EHF; EM scattering matrix elements; SHF; YFe5O12-GdCC; YIG-GdCC; circulators; coupled image guide; ferrite loaded dielectric image guide; filters; isolators; millimeter-wave passive devices; modulators; nonreciprocal coupling structure; nonreciprocal structure; perpendicular magnetic field; planar geometry; switches; Dielectric measurements; Electromagnetic measurements; Electromagnetic scattering; Ferrite films; Magnetic analysis; Magnetic field measurement; Millimeter wave measurements; Scattering parameters; Testing; Transmission line matrix methods;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179765

Filename

179765