Bandwidth and Gain Enhancement of Parasitic Loaded Proximity Coupled Antenna for WLAN Applications

Abstract

In this work, two different substrates were used for enhancing the bandwidth and gain of the designed antenna for the application of WLAN. The proposed design attained at 5.2 GHz frequency. The proposed structure consists of the five layers arranged in vertical direction. The lower layer is ground layer, fifth layer is the active patch, substrate one is FR-4, and substrate two is RT Duroid 5880 with equal height of 1.6 mm. The performance of the proposed antenna is improved by placing triangular slots on the patch. A non-contacting type proximity feed line method was proposed for excellent impedance matching. From the observation stage by stage, the radiating element enhances the bandwidth and gain. The proposed design simulated through CSTMW 2018. The measured S-parameters and radiation patterns results are observed from vector network analyzer and anechoic chamber. Finally, the proposed radiating element is well suited for WLAN applications.