Edge condition in moment-method analysis of slots in a waveguide

The effect of the edge condition in the moment-method solution of narrow sl ots in a rectangular waveguide is investigated, with particular reference t o the longitudinal slot case. Entire-domain basis and testing functions are used within the moment method to solve for the unknown tangential electric field on the aperture. Simulated results are found to be in good agreement with previous published results, as well ns with simulations carried out u sing a finite-element package. (C) 1999 John Wiley & Sons, Inc.