A Multiband Antenna for WLAN and WiMAX Wireless Applications

This article shows the designing of slotted multiband antenna with metamaterial loading. Such design is using for wireless communication applications. Antenna is cover the wireless communication modes such as WLAN, WiMAX, X and KU Band. Proposed antenna is fabricated on low cost (FR4) substrate with compact size of 35 x 34 x 0.8 mm(3). It is consist microstrip feedline and slotted ground plane. The SRR, CSRR and parallel stubs are introduced with patch to achieve the wireless communication bands. Antenna design has appropriate gain and efficiency, and stable E and H radiation patterns. In such compact size by introducing SRR and CSRR structure, proposed antenna achieved seven bands which covers WLAN, WiMAX, X and KU wireless communication bands. In proposed antenna by introducing two parallel stubs it achieve three bands and after introducing with CSRR and SRR and defected ground structure, seven bands with improved reflection coefficient achieved.