High-frequency asymptotic solution for scattered fields by a junction of planar impedance surfaces

IEICE Electronics Express

Keiji Goto¹  Toru Kawano¹  Toyohiko Ishihara¹ 

[1] Department of Communication Engineering, National Defense Academy

关键词: asymptotic solution;    junction;    planar impedance surfaces;    aperture field method;    saddle point technique;   

DOI  :  10.1587/elex.7.1072

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(9)We derive a novel high-frequency asymptotic solution for scattered fields by a junction of planar impedance surfaces assuming that the transmitting and the receiving antennas are placed sufficiently away from the impedance surfaces. An integral representation for scattered fields derived by using the aperture field method is evaluated asymptotically by applying the saddle point technique applicable uniformly as the saddle point approaches the endpoint of the integral. The novel asymptotic solution includes the higher-order term. By comparing with the reference solution calculated by the numerical integration of the integral, the validity of the asymptotic solution is confirmed.

【 授权许可】

Unknown