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A miniaturized dual-band ZOR antenna using epsilon negative transmission line loading

Published online by Cambridge University Press:  02 May 2017

Ashish Gupta  and
Raghvendra Kumar Chaudhary
Ashish Gupta*
Affiliation:
Microwave Research and Development Laboratory, Indian Institute of Technology (Indian School of Mines), Dhanbad-826004, India. Phone: +91 7766907806
Raghvendra Kumar Chaudhary
Affiliation:
Microwave Research and Development Laboratory, Indian Institute of Technology (Indian School of Mines), Dhanbad-826004, India. Phone: +91 7766907806
*
Corresponding author: Ashish Gupta Email: ashishgupta.ism@gmail.com
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Abstract

A miniaturized dual-band CPW-fed metamaterial antenna is presented and developed in this paper. Zeroth-order mode is originated by realizing open-ended composite right/left-handed transmission line. A dual split ring resonator is introduced to obtain another mode. The antenna is operated in the frequency region 1.60–1.64 and 2.76–2.79 GHz. Shunt inductance is offered by means of thin stripline connecting ground planes. It is demonstrated that by applying metamaterial loading (thin stripline) proposed antenna is capable to achieve 51.9% miniaturization with respect to the antenna without metamaterial loading. The presented antenna has an electrical size of 0.162 λ0 × 0.108 λ0 × 0.008 λ0 at f0 = 1.62 GHz. The antenna exhibits simulated gain of 1.05 and 2.59 dB in the broadside directions at 1.62 and 2.78 GHz, respectively. Beside that this antenna offers dipolar-type pattern and omnidirectional pattern in the xz-and yz-planes respectively at both bands, which is beneficial to be used in modern wireless applications. The design methodology of the proposed antenna is described with the help of current distributions and parametric analysis.

Keywords

Split ring resonator (SRR)Zeroth-order resonance (ZOR)Epsilon negative transmission line (ENG-TL)
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Special Issue 8: Biomedical Applications of RF/Microwave and Optics Technologies , October 2017 , pp. 1735 - 1739
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2017 

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References

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