Modified Double-Ridged Antenna for 2-18 GHz
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Modified Double-Ridged Antenna for 2-18 GHz摘要
In this paper, the design and simulation of a modified double-ridged antenna for 2-18 GHz is presented. The designed antenna has a voltage standing wave ratio (VSWR) less than 2.4 for the frequency range of 2-18 GHz and is most suitable as a feed element in the reflectors of the radar systems and EMC applications. The proposed antenna had distortion in radiation patterns in the 10-14 GHz frequency range. This problem has been modified by shaping of ridges. The proposed antenna is simulated with commercially available packages such as CST microwave studio and Ansoft HFSS in the operating frequency range. Simulation results for the VSWR, radiation patterns, and gain of the designed antenna over the frequency band 2-18 GHz are presented and discussed.
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