Summary
International Symposium on Antennas and Propagation
2006
Session Number:1D2a
Session:
Number:1D2a-4
Design of High Efficiency Circular Horns
Chan Kwok Kee,
pp.1-4
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
Some aspects on the design of a high efficiency profiled circular horn are presented. The modal content at the circular aperture necessary to closely approximate a unipolarized uniform distribution is first established. Slope discontinuities along the length of the horn are then used to generate the necessary aperture modes with the appropriate amplitudes and phases. The performance of the horn is calculated using the mode matching technique. Significant improvement in the aperture efficiency and reduction in the cross-polar level over a straight conical horn can be achieved. This conclusion is supported by the good agreement between predictions and measurements of a high efficiency dual-band horn.