Title :
On the invariance of the MEI to the field of excitation
Author :
Luk, K.M. ; Yung, E.K.N. ; Leung, K.W.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, Hong Kong
Abstract :
By considering the classical problem of electromagnetic scattering of a circular conducting cylinder, the invariance of the measured equation of invariance (MEI) is examined analytically. Using the asymptotic expansion of the Hankel function of second kind, H/sub n//sup (2)/(k/spl rho/), the case of an electrically large cylinder is studied. It is shown that by truncating all the terms of the expansion with orders higher than 1/(k/spl rho/)/sup 2/, the MEI coefficients are invariant to the field of excitation.
Keywords :
Hankel transforms; electromagnetic wave scattering; Hankel function; MEI; asymptotic expansion; circular conducting cylinder; classical problem; electrically large cylinder; electromagnetic scattering; field of excitation; invariance; measured equation of invariance; Current density; Differential equations; Electromagnetic analysis; Electromagnetic measurements; Electromagnetic scattering; Engine cylinders; Finite difference methods; Frequency domain analysis; Polarization;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1995. AP-S. Digest
Conference_Location :
Newport Beach, CA, USA
Print_ISBN :
0-7803-2719-5
DOI :
10.1109/APS.1995.530104
