A Compact Metamaterial based Dual-Band Antenna with Improved Gain for WLAN Applications

Abstract

In this paper, a compact metamaterial inspired dual band antenna is proposed for WLAN and WiMAX applications. The antenna consists of Square Split Ring Resonator structure with a defected ground plane and slots to enhance the bandwidth and gain parameters. Metamaterial based Microstrip patch antenna produces unique electromagnetic properties that allows us to control over the antenna parameters with a compact size. FR-4 epoxy is used as substrate its dielectric constant is 4.4 and loss tangent is 0.02. Dimensions of the antenna are 20 x 12 x 1.6mm3 with very compact size and cost effective. The proposed metamaterial based antenna resonates at dual bands at 5.13GHz and 5.53 GHz with impedance bandwidth of (|S11|<-10 dB) 4.96-5.26 GHz (300MHz) and 5.34-5.69 GHz (350MHz) respectively. The peak gains at resonant frequencies 5.13 GHz and 5.53 GHz are 1.61 dB and 1.62dB respectively. The proposed metamaterial based compact antenna can effectively work for WLAN and WiMAX application.

Design of Sub-6 GHz Antenna using Negative Permittivity Metamaterial for 5G Applications

“…This antenna provides a dual-band with a peak gain of 0.9 dB and 2 dB at the resonant frequencies 3.45 GHz and 5.46 GHz respectively covering the WLAN and WiMAX applications [2]. All the relevant data for design analysis is used from papers [14][15][16]. Section II presents the details of metamaterial-inspired antenna geometry and design for the proposed antenna.…”