Rigorous analysis of radiation properties of lossy patch resonators on complex anisotropic media and lossy ground metallization

Author

Cai, Zhenglian ; Bornemann, Jens

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

Volume

42

Issue

10

fYear

1994

fDate

10/1/1994 12:00:00 AM

Firstpage

1443

Lastpage

1446

Abstract

An extended spectral-domain immittance approach for the rigorous analysis of resonant frequencies and radiation characteristics of microstrip resonators is presented. The dyadic Green´s function in the spectral domain is modified to include a complex anisotropic substrate with both permeability and permittivity tensors, lossy ground metallization, and a lossy conducting patch of conventional or superconducting material. Closed-form expressions for the transverse propagation constants and related immittances of TE and TM waves in the spectral domain lead to a CPU-time efficient algorithm that is operational on standard workstations. Numerical results show how the radiation characteristics are affected by losses as well as uniaxial and biaxial anisotropies

Keywords

Green´s function methods; antenna radiation patterns; electric immittance; microstrip antennas; microstrip components; rectangular waveguides; spectral-domain analysis; substrates; waveguide theory; CPU-time efficient algorithm; TE waves; TM waves; biaxial anisotropies; closed-form expression; complex anisotropic media; dyadic Green´s function; extended spectral-domain immittance approach; lossy ground metallization; lossy patch resonators; microstrip resonators; permeability tensor; permittivity tensor; radiation properties; transverse propagation constants; uniaxial anisotropies; Anisotropic magnetoresistance; Closed-form solution; Green´s function methods; Metallization; Microstrip resonators; Permeability; Permittivity; Resonant frequency; Superconducting materials; Tensile stress;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.320752

Filename

320752