Scattering parameters measurement of a nonreciprocal coupling structure

Author

Kwan, P. ; Vittoria, C.

Author_Institution

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

Volume

41

Issue

4

fYear

1993

fDate

4/1/1993 12:00:00 AM

Firstpage

652

Lastpage

657

Abstract

A novel ferrite image guide was designed and tested from 26.5 to 40 GHz. The nonreciprocal structure consisted of two dielectric image guides separated by a ferrite slab. M-type hexagonal ferrite was used with its C-axis oriented parallel and perpendicular to the direction of propagation. The S-parameters of the device were measured for a nonuniform external biasing magnetic field applied parallel to the C-axis of the ferrite slab. Nonreciprocal effects were observed for all cases considered above. The results imply applications for ferrite devices operating at millimeter wavelength frequencies, such as isolators, filters, modulators, switches, phase shifters, etc

Keywords

S-parameters; ferrite devices; microwave devices; waveguide components; 26.5 to 40 GHz; C-axis; M-type hexagonal ferrite; MM-wave type; S-parameters; ferrite image guide; ferrite slab; millimeter wavelength frequencies; nonreciprocal coupling structure; nonuniform external biasing magnetic field; Dielectric measurements; Ferrite devices; Magnetic field measurement; Millimeter wave devices; Millimeter wave measurements; Millimeter wave propagation; Scattering parameters; Slabs; Testing; Wavelength measurement;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.231660

Filename

231660