On determining if a specular point exists

A technique is presented whereby the existence of a specular point on a convex surface of revolution can be determined without actually finding it. Only the evaluation of two simple algebraic expressions is involved. Should a specular point be found not to exist, a search procedure has been thereby eliminated. Original language English Journal I E E E Transactions on Antennas and Propagation Volume 27 Issue number 1 Pages (from-to) 99-101 ISSN 0018-926X DOIs https://doi.org/10.1109/TAP.1979.1142021 Publication status Published - 1979 Bibliographical note Copyright 1979 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.