Tri-Band Compact Microstrip Antenna with Multi Slots for GSM/UMTS/WIMAX Applications
In this paper, we presented a design and optimization of one compact tri-band microstrip patch antenna for
multiband 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 functionality 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 mm44mm 1.6 mm3. After physical
design, extensive simulations were accomplished using 3D full-wave FEM-based EM simulator. The performance of the
antenna was analyzed in terms of gain, radiation pattern and s-parameters. The simulated radiation patterns at the desired
resonant frequencies were shown nearly Omni-directional.
Index Terms— compact misrostrip antenna, multi-band, slotted antenna, triple-band.