%0 Journal Article
%T Derivation of Conditions for the Normal Gain Behavior of Conical Horns
%A Chin Yeng Tan
%A Krishnasamy T. Selvan
%A Yew Meng Koh
%J International Journal of Antennas and Propagation
%D 2007
%I Hindawi Publishing Corporation
%R 10.1155/2007/32345
%X Monotonically increasing gain-versus-frequency pattern is in general expected to be a characteristic of aperture antennas that include the smooth-wall conical horn. While optimum gain conical horns do naturally exhibit this behavior, nonoptimum horns need to meet certain criterion: a minimum axial length for given aperture diameter, or, alternatively, a maximum aperture diameter for the given axial length. In this paper, approximate expressions are derived to determine these parameters.
%U http://www.hindawi.com/journals/ijap/2007/032345/abs/