Electromagnetic properties of nonreciprocal composite chiral-ferrite media

Author

Krowne, Clifford M.

Author_Institution

Div. of Electron. Sci. & Technol., Naval Res. Lab., Washington, DC, USA

Volume

41

Issue

9

fYear

1993

fDate

9/1/1993 12:00:00 AM

Firstpage

1289

Lastpage

1295

Abstract

The theoretical properties of a composite chiral-ferrite medium are developed, The composite is constructed from a general chiral medium and a nonreciprocal ferrite medium. Application of the reaction theorem allows proof of nonreciprocity based on the constitutive relationships. Vector Helmholtz E- and H-field equations are derived, and from these equations reciprocal space Green´s function dyadics are found. The direct space dyadics are then determined. Characteristic dispersion equations are found from the sourceless vector phasor Helmholtz equations. E-field polarization is obtained by projecting the E-field vector onto the polarization plane selected. Diagonalization of the elliptic equation through coordinate rotation allows major and minor axis determination

Keywords

Green´s function methods; composite materials; dispersion relations; electric fields; electromagnetic field theory; electromagnetic wave propagation; ferrites; magnetic fields; E-field equations; Green´s function dyadics; H-field equations; composite chiral-ferrite media; constitutive relationships; coordinate rotation; direct space dyadics; dispersion equations; electromagnetic properties; elliptic equation; general chiral medium; major axis determination; minor axis determination; nonreciprocal ferrite medium; reaction theorem; sourceless vector phasor Helmholtz equations; Coatings; Ferrites; Integral equations; Magnetic fields; Microstrip antenna arrays; Microstrip antennas; Microwave technology; Polarization; Radar antennas; Radar cross section;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.247756

Filename

247756