ISSN: 0973-7510

E-ISSN: 2581-690X

B. Anandhi Meena1 , P. Thiruvalar Selvan2, B. Nagaraj3, S. Raghavan4, S. Suganthi5 and V. Karthiyayini6
1Teaching Faculty, Department of Electronics and Communication Engineering, University College of Engineering, Dindigul – 624 622, India.
2Department of Electronics and Communication Engineering, TRPEC –Trichy, India.
3Department of Electronics and Communication Engineering, Karpagam College of Engineering, Coimbatore – 641 032, India.
4Department of Electronics and Communication Engineering, National Institute of Technology – Trichy, India.
5Department of Electronics and Communication Engineering, Christ University, Bangalore, India.
6University College of Engineering, Dindigul, India.
J Pure Appl Microbiol. 2015;9(Spl. Edn. Aug.):235-242
© The Author(s). 2015
Received: 26/02/2015 | Accepted: 26/04/2015 | Published: 31/08/2015
Abstract

Our paper presents the design and development of split ring resonator based metamaterial antenna for biomedical i.e., Industrial, Scientific and Medical(ISM-2.45GHz) applications and also used in biosensors. Now a day the biological changes in the human body such as glucose content in blood, heart rate, respiratory rate, brain tumor are monitored by the use of wireless body area networks. In such networks the main part of the system is antenna with compactness and wider bandwidth. We have designed gain enhanced and wide bandwidth antennas with size reduction of more than 95% compared to the conventional patch antenna. The design methodology is based on Metamaterial which is an emerging technology uses split ring resonators for size reduction. We have designed double square split ring shape superstrate antenna and circular ring resonator antenna with stub for 2.48GHz. Also they have better return loss (>12dB). Our antennas are fed with microstrip feeding and Coplanar Waveguide (CPW) feeding for better impedance matching and easy fabrication. The fabricated antennas are tested using Network analyzer. The measured results are good in agreement with simulated results.

Keywords

Metamaterials, Patch antenna, Square split ring resonators, Circular split ring resonators, Superstrate, Stub

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