3. The frequency range covered is (2.6-3.0 GHz)/2.8GHz, (3.6-4.7 GHz)/3.7 GHz and (5.4-5.9 GHz)/5.6GHz for WiMAX/WLAN applications. The impedance bandwidth of 14.28%, 29.72% and 8.92% have been achieved.
">A low profile H slit monopole antenna with defected ground plane for WiMAX/WLAN applications has been presented in this paper. A single slit is cut initially followed by the anticlockwise rotated T slit, and finally a H-shaped slit cut in the patch provides the multiband resonance with enhanced impedance bandwidth. After the implementation of Defected Ground Structure in this low profile antenna, gain and radiation pattern is much better. The size of low profile antenna is 26× 32 × 0.8 mm3. The frequency range covered is (2.6-3.0 GHz)/2.8GHz, (3.6-4.7 GHz)/3.7 GHz and (5.4-5.9 GHz)/5.6GHz for WiMAX/WLAN applications. The impedance bandwidth of 14.28%, 29.72% and 8.92% have been achieved.