Design and Analysis of a Multi Band Circular Flower Shaped Micro Strip Patch Antenna For WLAN/WiMAX ISM Band Applications

The research focuses on the design and analysis of a multi band circular petal flower-shaped micro strip a patch antenna. The antenna is fed via a micro strip feed line. By placing four circles in a spherical manner the flower shaped antenna is proposed. The initial antenna is designed with two petals positioned at 90-degree angle to other. To achieve maximum performance, the parametric analysis was performed by adjusting the radius of the circles, and at a radius of 11mrn, numerous bands appeared with frequency bands 5.04GHz - 5.24GHz, 5.44GHz - 5.72GHz, 6.68GHz - 7.16GHz, 8.18GHz - 8.06GHz, and 8.96GHz - 9.46GHz. The rapid advancement in wireless technology necessitates the use of antennas capable of operating multiple frequencies. The HFSS (high frequency system simulator) software was used to design and stimulate the Micro strip patch antenna, which has dimensions of 50mm, 60mm, and 3.2mm. The flower shaped patch antenna which provides multi band characteristics with good bandwidth. These characteristics are necessary for wireless devices, and the antenna can be easily installed on aircraft, spacecraft, and satellite. This design is analysed with different parameters like VSWR, Return loss, Bandwidth.