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Frequency Reconfigurable U-Shaped Microstrip Patch Antenna and its Wireless Application

Author : Satish Kumar Yadav, A. Ashok and A. K. Jaiswal

Pages : 1360-1362
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A U-Shaped Microstrip Patch Antenna is presented with operating frequency as 5.25GHz. This antenna is capable of switching to two different frequencies 4.3030 GHz and 4.8486 GHz. There is one p-i-n diode used to achieve frequency reconfigurability and wireless application. A comprehensive parametric study has been carried out to understand the effects of various dimensional parameters and to optimize the performance of the antenna. A substrate of low dielectric constant is selected to obtain a compact radiating structure that meets the demanding bandwidth specification. The obtained results have better working characteristics like return loss, voltage standing wave ratio (VSWR), gain and directivity. The reflection coefficient at the input of the optimized U-shaped microstrip patch antenna is below −10 dB over the entire frequency band. Return loss, Directivity, Gain and VSWR are measured -20.892dBi, 8.1190dBi, 8.1522dBi and 1.3648 respectively. These values are best suited for designing the antenna.

Keywords: Directivity, Reconfigurable, Microstrip patch antenna, diode, polarization.

Article published in International Journal of Current Engineering and Technology, Vol.6, No.4 (Aug-2016)

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