Design and fabrication of dual band AMC-backed monopole antenna for WLAN and Wi-Fi applications

Abstract

This paper presents the design and fabrication of a Coplanar Waveguide (CPW) fed dual band antenna with a Complementary Split Ring Resonator (CSRR) with and without Artificial Magnetic Conductor (AMC). This proposed model exhibits two operational bands with increased gain. The antenna design without AMC works at the bands of 2.41 to 2.62 GHz and 4.87 to 5.10 GHz. The obtained gains at resonances of working bands are 2.6 dB and 3.6 dB. The antenna with AMC operates at the bands of 2.33 to 2.57 GHz and 4.85 to 5.14 GHz, respectively. The attained gains at the resonances of working bands for AMC-backed monopole antenna are 5.15 dB and 6.12 dB. From the measured results, the bandwidth and gain are increased for AMC-backed design when compared with no AMC condition. In addition, the analysis of both antenna designs also done in HFSS workbench for analysing the return loss, 3D gains, current distributions and radiation patterns. As per the observed measures of gain values, the proposed antenna is suitable for the applications of Wi-Fi and WLAN.