Compact multiband antenna with symmetrial I-and S-shaped slots for wireless applications

摘要

A coaxial-fed quad-band model is considered for microwave access. It can be employed for L and S band applications which include WLAN, GPS and WiMax. The designed model has dimension of (65 × 65 ×1.6mm²) and dielectric substrate of FR-4 epoxy with relative permittivity 4.4 and also has symmetrical I-shaped slots above substrate to generate multiband. It is modeled to work within (0.5-4.0 Ghz). The designed model is simulated by High Frequency Structure Simulator (HFSS) and the simulated result described that the designed antenna will work well over 1.37-1.42, 2.43-2.57, 2.76-2.81 and 3.51-3.61 GHz frequency band.