Vol. 56

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2015-08-31

A Dumbbell-Shaped Dual-Band Metamaterial Antenna Using FDTD Technique

By Sameer Kumar Sharma, Devvrat Gupta, Jai Deep Mulchandani, and Raghvendra Kumar Chaudhary
Progress In Electromagnetics Research Letters, Vol. 56, 25-30, 2015
doi:10.2528/PIERL15070106

Abstract

In this study, a dumbbell-shaped metamaterial (MTM) antenna has been proposed for dual-band applications using finite difference time domain (FDTD) technique. Such a composite MTM antenna consists of dumbbell-shaped patch, microstrip and partial ground plane. The proposed antenna shows dual-band behavior having impedance bandwidths (|S11| < -10 dB) of 28.5% and 8.7% at 1.72 GHz and 3 GHz respectively. It has been designed to operate at various cellular standards such as GPS, GSM1800 and WCDMA. Design and analysis have been carried out using FDTD code based on uniform meshing and convolutional perfectly matched layer (CPML) absorbing boundary conditions. Further, simulation results have been verified using HFSS, and a prototype has been fabricated to validate the results experimentally. The overall electrical size of the proposed antenna is 0.287λo × 0.346λo × 0.009λo. The proposed dual-band antenna offers excellent radiation characteristics with a gain of 1.2 dBi and 1.5 dBi at 1.72 GHz and 3 GHz respectively with omnidirectional radiation patterns in xz-plane.

Citation


Sameer Kumar Sharma, Devvrat Gupta, Jai Deep Mulchandani, and Raghvendra Kumar Chaudhary, "A Dumbbell-Shaped Dual-Band Metamaterial Antenna Using FDTD Technique," Progress In Electromagnetics Research Letters, Vol. 56, 25-30, 2015.
doi:10.2528/PIERL15070106
http://jpier.org/PIERL/pier.php?paper=15070106

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