Design and Analysis of Zeroth-Order Resonator-Coplanar Waveguide Antenna Using CRLH-TL Metamaterial
Sadiq Kadhim Ahmed Ahmed (Mustansiriyah University, Iraq)
This paper presents design and analysis of a novel configuration of the zeroth order coplanar waveguide (CPW) resonator (ZOR). It is based on composite right/left-handed transmission line (CRLH-TL) metamaterial unit cell, it provides size reduction, extended bandwidth and better efficiency. The realized antenna has a compact size of (0.183λ0× 0.183λ0× 0.027λ0), and gives high flexibility in the design, due to the fact that metamaterial resonant antenna is printed on a single layer CPW, without using vias. The bandwidth, directivity and radiation efficiency of the proposed antenna is about 123.3%, 0.65 dB and 76% at 5.5GHz, respectively. Its bandwidth is improved compared with the other antennas. The antenna was designed to operate from 4.55 to 11.33 GHz and possesses a reflection coefficient of -23.7 dB at the zeroth order resonance frequency. The proposed antenna achieves a 61.5 % reduction in patch size compared to a conventional half-wavelength patch antenna at 5.5GHz.
Journal: International Journal of Simulation: Systems, Science and Technology IJSSST V19
Published: Feb 28, 2018