A DGS based UWB semi-circular microstrip antenna with circular slots for improvement in Gain & Efficiency
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A DGS based UWB semi-circular microstrip antenna with circular slots for improvement in Gain & Efficiency
Sandip Roy1, Ayantika Patra1, Arijit Sarkar1, Sourav Ghosh1, Atanu Chowdhury1 and Tejaswita Kumari1
1Electronics & Communication Engineering Department, Seacom Engineering Colleg
We have no conflict of interest to disclose.
Corresponding Author: Atanu Chowdhury, Kona Naskarpara, Howrah, State-West Bengal, India. PIN – 711114. Email address: atanuchowdhury.092@gmail.com
Abstract
This article comprises of a small research with an approach to increase the gain and efficiency of a Ultra Wide Band (UWB) antenna using a simple circular slot in a semi-circular patch antenna having Defected Ground Structure (DGS). The optimization of the antenna is done to obtain enhanced bandwidth, gain and efficiency. The designed antenna is composed on FR4 substrate with a compact volume of 26mm x 27mm x 1.6mm. A significant bandwidth of 3 GHz to 15 GHz is obtained with an improved gain, which also causes the efficiency to be increased by a good margin. A maximum gain of 8.5 dB is obtained while the maximum efficiency is near about 92%.
Keywords: UWB, DGS, gain, efficiency, circular slot
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