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This letter investigates a new reconfigurable antenna technique based on the rotation of a slot. The surface currents are redistributed for each slot position. The antenna is simulated, fabricated, and tested. The return loss frequency tuning matches the simulated data. The antenna radiation pattern remains unchanged for different slot positions. Finally, the process for automatic rotation and control...
This paper presents a new approach for the design of a multi-band bowtie antenna. By incorporating slots with different shapes and sizes on the arms of the bowtie, resonance is obtained in the 2.4 GHz, 3.5 GHz, and 5 GHz bands corresponding to Wi-Fi 802.11a, 802.11b, 802.11g , 802.11n, and WiMAX 802.16-2004 standards. A study of the effect of circular and triangular slots, their size and their location...
In this paper, a low-cost ultra-wideband microstrip antenna is presented. The antenna is based on a 1.6-mm-thick FR4 substrate, is microstrip-line fed and has a partial ground plane. The return loss is more than 10 dB in the 1.9-13.5 GHz frequency range. Possible applications include 3G, Wi-Fi, WiMAX, and UWB applications. The gain results and pattern plots of the antenna are included in the paper.
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