Abstract

In this work, we discuss about the design of a pyramidal horn antenna with high gain and reduced side lobes partially covering the C band and the X band of operation. The waveguide width (a), waveguide height (b), flare width (A), flare height (B) and flare length of the pyramidal antenna have been optimized. These dimensions determine the required characteristics such as S11, gain, radiation pattern of the antenna. The optimized antenna shows decent gain of approximately 12.2 dB over operating range while having a bandwidth of 3 GHz centered at the frequency of 7.5 GHz (approximately 7 GHz to 10 GHz). Ansys HFSS has been used to design and simulate the antenna. Genetic Algorithm, Quasi-Newton method and Pattern search optimization techniques are comparatively utilized to optimize the antenna design.

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