Abstract
Modern wireless communication systems require high gain and high bandwidth antennas which are able to provide better performance. This paper presents the design and simulation of a broadband pyramidal horn antenna array for satellite applications. First, a pyramidal horn antenna with a single optimized element is designed, and then the optimization of the <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$2\times 1$</tex> array is done using different distances between the elements of the array to obtain a high gain. The horn antenna array is excited through a power splitter circuit and an impedance matching circuit. The final antenna array provides a gain of 24.5 dBi at a resonant frequency of 13.3 GHz. The simulation results show a low voltage standing wave ratio, a good radiation of the Ku-band model and a high gain compared to a single horn antenna. The simulations were performed with the ANSYS HFSS program. The proposed antenna array operates in the Ku frequency band.
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