Gain Enhancement of a Square Patch Antenna using EBG Structure
Amsaveni1, M. Bharathi2, P.J.Phavithra3

1A.Amsaveni, Professor, Department of Electronics and Communication Engineering, Kumaraguru College of Technology, Coimbatore (TamilNadu), India.

2M.Bharathi, Professor, Department of Electronics and Communication Engineering, Kumaraguru College of Technology, Coimbatore (TamilNadu), India.

3P.J.Phavithra, PG Scholar, Department of Electronics and Communication Engineering, Kumaraguru College of Technology, Coimbatore (TamilNadu), India.

Manuscript received on 10 December 2018 | Revised Manuscript received on 17 December 2018 | Manuscript Published on 30 December 2018 | PP: 394-400 | Volume-8 Issue- 2S December 2018 | Retrieval Number: BS2675128218/19©BEIESP

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Abstract: In this research work, the gain of a square shaped microstrip antenna has been enhanced using an electromagnetic bandgap (EBG). The dimension of the proposed antenna is 57x57x1.6 mm3. The proposed square patch antenna is simulated using commercially available FR4 substrate whose dielectric constant is about 4.7. The proposed antenna resonates at ISM band of 2.45 GHz. The antenna is powered by 50Ω transmission line using the microstrip feedline structure. The gain of this antenna is improved by 3.5 dBi from that of a conventional antenna. The antenna parameters such as radiation pattern, return loss, VSWR and gain have been evaluated. The antenna is designed and simulated on Computer Simulation Technology (CST) microwave studio.

Keywords: Square Patch, Electromagnetic Bandgap, Microstrip Feedline, Gain.
Scope of the Article: Communication