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Abstract
In this paper, a new design of a broadband hybrid antenna for X-band applications is presented. The proposed antenna structure consists of a Dielectric Resonator (DR), an intermediate substrate, and a microstrip fed slot. With the integration of these elements, a wide bandwidth response was achieved. A dual-offset feedline is used to further tune the impedance bandwidth. High Frequency Structure Simulation (HFSS) software package of Ansoft is used to investigate the antenna performance. The input impedance and the far-field patterns were performed out, and a parametric study was done to optimize the antenna performance. The proposed antenna was then fabricated and measured. A good agreement between simulated and measured results was obtained. Experimental results show that the proposed antenna exhibits a wide input impedance bandwidth of 59.1%.
