Quad Octagon with Ground Defection Dual Band MSPA For WiMAX and WLAN Technologies

Abstract

As huge number of applications has been found for a Micro-strip antenna due to its compact and small structure, a quad octagon shaped dual band and broadband Micro-strip antenna has been discovered for consumer applications such as (2.1GHz and 5.4GHz). In this research work, it is obtained by combining four octagon shaped patch structures with a micro-strip feed line and a partial ground structure. Presented microstrip antenna is suitable for providing dual band output i.e., a frequency band from 1.672GHz to 2.788GHz and a frequency band from 4.876GHz to 6.232GHz. The resonance frequency of the projected antenna is at 2.58GHz and 5.39GHz. Results displays that the antenna attains a good   outcome characteristics. The intended antenna can manage 1.116GHz impedance bandwidth (BW) and 50.04% & 24.41% fractional BW below -10dB makes it more applicable for WiMAX and WLAN technologies. The antenna has been tested on FR-4 substrate having thickness of 1.6mm. The projected antenna has been also examined on CST Microwave Studio. To make the projected antenna for dual band as well as for broadband the physical profile of four Octagon-shaped patch have been attached with partial ground.