Parameter enhancement and size reduction of metasurface reflector loaded decagon antenna for wireless applications

Abstract

This paper proposes a miniaturized metasurface reflector-loaded decagon antenna for wireless applications. A metamaterial (MTM) loaded with complementary split-ring resonators is used to reduce the size of the antenna by 70 % in comparison to a conventional antenna. The proposed slotted decagon patch antenna has CSRR on the ground plane. At 0.24 λ0 × 0.24 λ0 × 0.013 λ0 (λ0 corresponds to the center frequency at f = 2.4 GHz), the antenna is extremely compact. The antenna was constructed using the FR4 substrate, which has a thickness of 1.6 mm and a εr value of 4.40. The experimentation shows that using the metasurface reflector structure considerably increased gain from 1.8 to 8.12 dB when compared to the decagon antenna without the MSR. Additionally, MSR-loaded antennas in dimensions of 5 × 5, 4 × 4, 3 × 3, and 2 × 2 have also been investigated. The metasurface reflector-loaded decagon antenna provides a bandwidth of 40 MHz (2.42–2.46 GHz). 0.48 λ0 × 0.47 λ0 × 0.013 λ0 (λ0 corresponds to the center frequency at f = 2.4 GHz) is the overall dimension of the MSR-loaded antenna. The values of simulated and measured are fairly in agreement, except for a minor deviation. It is appropriate for wireless applications to use the proposed antenna.