Studies on Effect of U-Slot on Patch Radiating Element at WLAN Application
Keywords:Single patch antenna, U-slot, return loss, bandwidth, VSWR, radiation pattern, CST,
AbstractWLAN application are triggering many conducted types of research on enhancing their RF front technology. Given specific frequency at 2.4 GHz operating frequency, this technology attracting many methods introduced such as introducing a parasitic element, slotting techniques, defecting techniques and more. This paper highlights the effect of different U-slot widths on single patch antenna performances where it is focusing on return loss, VSWR, bandwidth, directivity, radiation pattern and gains at frequency 2.4GHz. U-slot inserted into the patch is used to enhance bandwidth and to increase the efficiency of the antenna. The coaxial probe is used for feeding this structure. The single patch antenna with different U-slot width was designed and simulated using CST Microwave Environment software. The slotting technique gives an increment of 1.043% for their bandwidth and a high percentage of efficiency.
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