Abstract
A new design of artificial magnetic conductor (AMC) is recommended in order to improve the performance of a millimeter-wave (mmW) linear parallel feed network patch array antenna. An AMC is used as parasitic patches that are placed in two conditions at a frequency of 70 GHz. The first condition is the parasitic AMC patches are that placed closely to the antenna feed line and the second condition is the parasitic AMC patches that are placed at the center of the antenna patches. Details of the AMC, and array antenna design are explained, and the simulation results collected with a comparison to an antenna array without parasitic AMC patches are presented. It is observed that the gain of both conditions are increased by 4.4 % and 5.8 %, respectively, compared to the antenna array without parasitic AMC patches. The bandwidth of the first condition is enhanced by 20 % compared to the second condition and antenna without parasitic AMC patches. The sidelobe of the second condition is larger than the first condition and antenna without parasitic AMC patches. The efficiency of the second condition is improved by 2 % compared to the first condition and antenna without parasitic AMC.
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