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Compact Metamaterial Antenna with High Directivity for Bio-Medical Systems
Anna University-University College of Engineering, Dindigul, India
TRP Engineering College, Tiruchirappalli, India
National Institute of Technology, Tiruchirappalli, India
- 1 Anna University-University College of Engineering, Dindigul, India
- 2 TRP Engineering College, Tiruchirappalli, India
- 3 National Institute of Technology, Tiruchirappalli, India
Circuits and Systems·Volume 07 (2016)·Pages 4036–4045·Published 28 October 2016·DOI10.4236/cs.2016.712334
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Abstract
In this paper, high directive antenna using metamaterial property is presented for wireless medical systems. The antenna is constructed by semi-circular patch and hexagonal closed ring resonator (HCRR). For medical applications such as wireless patient movement monitoring, telemetry and telemedicine, communication devices working at ISM band frequency is needed. Here, the requirement is completed with improved directivity such as 16 dBi. And also impedance matching also achieved with low reflection loss -20 dB. This antenna works for multiple frequency bands (Industrial, Scientific and Medical-ISM 2.45 GHz, WLAN 5.3 GHz and GSM 1.9 GHz) with improved directivity.
KeywordsDouble Negative MetamaterialBack PropagationHexagonal Closed Ring Resonators
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