An Efficient Asymptotic Extraction Approach for the Green's Functions of Conformal Antennas in Multilayered Cylindrical Media

作者：Wu Jun^*; Khamas Salam K; Cook G G

来源：IEEE Transactions on Antennas and Propagation, 2010, 58(11): 3737-3742.

DOI：10.1109/TAP.2010.2077030

• Cylindrical antennas
• dyadic Green's function
• method of moments
• multilayered media

Asymptotic expressions are derived for the dyadic Green's functions of antennas radiating in the presence of a multilayered cylinder, where analytic representation of the asymptotic expansion coefficients eliminates the computational cost of numerical evaluation. As a result, the asymptotic extraction technique has been applied only once for a large summation order n. In addition, the Hankel function singularity encountered for source and evaluation points at the same radius has been eliminated using analytical integration.

• 出版日期2010-11