Abstract
The traditional Double Ridged Guide Horn (DRGH) Antenna consists of three sections: coaxial-to-ridged waveguide transition, cavity and a ridged waveguide flared section. Different variations of the coaxial-to-ridged waveguide and cavity sections of DGRH antennas are available to improve the VSWR to a 2:1 performance. In this paper three different profiles, exponential, Bezier and elliptical, are investigated for the ridges in the flared section, to obtain improved gain and radiation pattern performance for DRGH antennas. The DRGH antenna with an elliptical profile has a mark able increase in gain values, at the lower frequencies of the band.
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