Compact Tripple U-Shaped Slot Loaded Circular Disk Patch Antenna for Bluetooth and WLAN Application

In the present paper a three U-shaped slot loaded disk patch antenna is analyzed by using circuit theory concept. The antenna shows dual resonance. The resonance frequency of single layer patch is found to be 1.84 GHz and 2.61 GHz (simulated 1.80 GHz and 2.61 GHz) whereas for two layers dielectric antenna, it is 2.21 GHz and 3.14 GHz (simulated 2.20 GHz and 3.13GHz) respectively. The frequency ratio is found to be 1.41 (simulated 1.45) for single layer patch antenna and 1.42 (simulated 1.42) for two dielectric layers patch antenna.