A Novel Printed Antenna with Square Spiral Structure for WiMAX and WLAN Applications
Keywords:
Multiband characteristic, square spiral armsAbstract
? A new printed antenna with multiband characteristic suitable for WiMAX and WLAN operating frequency bands is presented. For this purpose, two square spiral arms as radiating elements and partial ground plane are considered in the antenna structure. By adding the square spirals and adjusting the number of turns of the square spirals, new resonances are excited and desired resonant frequencies at 2.56, 3.94, 5.20, 5.80, and 10.18 GHz can be achieved to cover WLAN and WiMAX systems. Parametric simulation of the main parameters affecting the antenna performance are presented and discussed. The designed antenna with full size of 20×20 mm2 is fabricated and tested. The radiation pattern is approximately omnidirectional in operating bands. The simulated and the experimental results are in acceptive agreement and confirm good performance for the offered antenna.
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References
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