Effective boundary conditions for reflection and transmission by an absorbing shell of arbitrary shape
- 1 November 1968
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 16 (6) , 706-712
- https://doi.org/10.1109/tap.1968.1139283
Abstract
The reflection and transmission properties of an absorbing shell of arbitrary shape can be described by two algebraic boundary conditions relating the four tangential fieldsE_{+}, H_{+}, E_{-}, H_{-}at corresponding points on the outer surfaceS_{+}and inner surfaceS_{-}, respectively. The boundary conditions contain first-order curvature correction terms, but it is still necessary that the shell curvature be reasonably small compared to the attenuation per unit distance in the shell material. Especially simple conditions are obtained for shells thin compared to the attenuation length. The shell boundary conditions can also be used to determine an effective surface impedance for a conducting body coated by multiple layers of absorbing material.Keywords
This publication has 4 references indexed in Scilit:
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