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Diffraction of a plane wave by an infinite slit in a unidirectionally conducting screen

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1 Author(s)
Seshadri, S. ; Electronics Res. and Dev. Establish, Bangalore, India

The scattering of a plane electromagnetic wave of wave number k , by an infinite slit (of width 2a ) formed by two unidirectionally conducting, semi-infinite coplanar screens of zero thickness is considered. By employing an integral equation procedure, a rigorous asymptotic solution is obtained up to order (ka)^{-5/2} . The currents induced on the screens and the first few terms in the transmission coefficient are evaluated. The similarity between this and the corresponding problem involving perfectly conducting screens is pointed out.

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Antennas and Propagation, IRE Transactions on  (Volume:9 ,  Issue: 2 )