Paper Title
Tri-Band Compact Microstrip Antenna With Multi Slots For Gsm/Umts/Wimax Applications

Abstract
In this paper,we presenteda design and opti�mi�za�tion of one compact tri-band microstrip patch antenna for multi�band applications. This antenna is proposed to be used for GSM, UMTS and WiMAX wireless communications applications at 1.8 GHz, 2.1 GHz and 3.5 GHz, respectively. The multiband functiona�lity was yielded by using E-shaped slot and cylindrical slot within the square radiating patch. The proposed antenna is basically a square microstrip patch and a partial ground plane fed from (4, 0, 0) point. It has a simple structure with overall size of 44 mm44mm 1.6 mm3. After physical design, extensive simulations were ac�comp�lished using 3D full-wave FEM-based EM simulator. The per�formance of the antenna was analyzed in terms of gain, radiation pattern and s-parameters. The simulated radiation pat�terns at the desired resonant frequencies were shown nearly Omni-directional. Index Terms� compact misrostrip antenna, multi-band, slotted antenna, triple-band.