Title :
A Generalized Asymptotic Extraction Solution for Antennas in Multilayered Spherical Media
Author :
Khamas, Salam K.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK
Abstract :
An efficient model is developed to accelerate the convergence of the dyadic Green´s function´s (DGF) infinite summation when the source and observation points are placed in different layers of a dielectric sphere, thereby expediting computational analysis. The proposed procedure is based on asymptotic extraction principles in which the quasi-static images are extracted from the spectral domain DGF. The effectiveness of the approach is demonstrated in a method of moment model where a microstrip antenna as well as a conformal dipole array have been studied.
Keywords :
Green´s function methods; conformal antennas; microstrip antenna arrays; asymptotic extraction; conformal dipole array; dielectric sphere; dyadic Green´s function infinite summation; microstrip antenna; quasi static images; Convergence; Dipole antennas; Green´s function methods; Impedance; Moment methods; Dyadic Green´s function; method of moments (MoM); spherical antennas;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2010.2071371
