Planar Dual-Band Electrically Small Antenna Based on Double-Negative Metamaterials

Cheng Zhou, Guangming Wang, Yu Xiao

Laboratory of Microwave Technology and Application, Air and Missile Defense College, Air Force Engineering University, Xi’an, China.

DOI: 10.4236/jcc.2015.33005                

Abstract

A coaxially fed dual-band electrically small antenna based on double-negative metamaterials is presented in this letter. The antenna consists of a microstrip patch antenna as driven element and a double-negative metamaterials shell as parasitic element. Nearly complete matching of the entire system to a 50 Ω source without any matching network is achieved at 299 MHz and 837 MHz, with ka = 0.444 and 1.242 respectively. Measured performance agrees with simulations, and the proposed antenna has considerable radiation efficiency and is suitably employed for VHF and UHF applications.

Keywords

Electrically Small, Planar, Efficiency, Quality

Conflicts of Interest

The authors declare no conflicts of interest.

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