Compact Novel Multiband Slotted Microstrip Patch using Grounded Asymmetric Coplanar Strip (GACS) for WLAN and WiMAX Applications

Abstract

A compacted multiband antenna using grounded asymmetric coplanar strip (GACS) propounded in this paper for multiband applications. The GACS techniques is used to miniaturization of antenna. It has compact size is 19 mm × 19 mm × 1.6 mm3. The suggested antenna has been design on FR4 material with ɛr =4.4 with 1.6 thickness. The monopole antenna is modified by adding L and F strips elements in radiating structure of patch to obtain multiband band resonance. The proposed antenna has application in the bands of WLAN (2.4 GHz-2.5 GHz), Wi-MAX (3.3 GHz-3.6 GHz) and Both WLAN/Wi-MAX (5.5 GHz-5.8 GHz) band. The bandwidth of antenna getting 100MHz, 240MHz and 350MHz at 2.45GHz, 3.55GHz and 5.56GHz. All the three band has VSWR less 1.4.