For access to this article, please select a purchase option:
Buy article PDF
Buy Knowledge Pack
IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.
Approximate closed-form expression for the eigenvalues of TE11- and TM11-modes in conical waveguides have been developed. The accuracy of these expressions is a function of the flare angle of the horn, being in excellent agreement with exact values.