Title :
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
fDate :
10/1/1994 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
