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High-frequency diffraction of electromagnetic waves by a circular aperture in an infinite plane conducting screen

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2 Author(s)
Seshadri, S. ; Harvard University, Cambridge, MA, USA ; Wu, T.T.

The scattering of plane electromagnetic wave of wave numberkby a circular aperture of radiusain an infinitely conducting plane screen of zero thickness and infinite extent is considered. In the limit of largekaand at normal incidence, the ratio of the transmission cross section to the geometrical optical valuepi a^{2}, is found up to the order(ka)^{-5^{j}2}.

Published in:

Antennas and Propagation, IRE Transactions on  (Volume:8 ,  Issue: 1 )