Title :
Modifications to the theory of waveguide horns
Author :
Hawkins, D.C. ; Thompson, F.
Author_Institution :
Q-Par Angus Ltd., Leominster, UK
fDate :
10/1/1993 12:00:00 AM
Abstract :
Waveguide horns have been extensively analysed by many authors, with broad agreement between the results of the various theoretical approaches, for medium- and high-gain horns. However, the approximations used in the calculation of the aperture fields are inaccurate when applied to low-gain horns, leading to errors in the calculated gain. A modified analysis is described, avoiding the most commonly used approximations. Experimental measurements on a 12 dB horn are used to substantiate the theory
Keywords :
antenna theory; horn antennas; 12 dB; aperture fields; gain analysis; high-gain horns; horn antenna; low-gain horns; medium-gain horns; modified analysis; waveguide horns;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings H
