Scattering reduction of a microstrip patch with an in-plane biased ferrite cover layer

Author

Yang, D.H.Y. ; Castaneda, J.A.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Illinois Univ., Chicago, IL, USA

Volume

2

fYear

1995

fDate

18-23 June 1995

Firstpage

1228

Abstract

A full-wave moment-method analysis of scattering from a microstrip patch with an in-plane biased ferrite cover is presented. A modified exponential-matrix method is employed to facilitate the computation of the Green´s function for layered media including non-reciprocal layers. The analysis enables the investigation of the scattering characteristics due to the effect of a biased ferrite cover layer. It is observed that there is significant resonant RCS reduction when the biased field is in the direction of the resonant-mode current. This RCS reduction is due to the existence of the extra-ordinary wave and the magneto-static waves within the ferrite layer.

Keywords

Green´s function methods; electromagnetic wave scattering; ferrimagnetic materials; ferrite devices; magnetic thin film devices; matrix algebra; method of moments; microstrip antennas; radar cross-sections; radomes; Green´s function; biased field; extra-ordinary wave; ferrimagnetic thin films; ferrite layer; full wave moment method analysis; in-plane biased ferrite cover layer; layered media; magnetostatic waves; microstrip patch; modified exponential-matrix method; nonreciprocal layers; radomes; resonant RCS reduction; resonant mode current; scattering characteristics; scattering reduction; Ferrites; Gaussian processes; Magnetic analysis; Magnetic anisotropy; Microstrip antenna arrays; Microstrip antennas; Perpendicular magnetic anisotropy; Resonance; Saturation magnetization; Scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1995. AP-S. Digest

Conference_Location

Newport Beach, CA, USA

Print_ISBN

0-7803-2719-5

Type

conf

DOI

10.1109/APS.1995.530241

Filename

530241