Study on band gap behaviour of electromagnetic band-gap(EBG) structure with microstrip antenna

The popularity of microstrip antennas are increasing day by day because of easy analysis and fabrication, and their attractive radiation characteristics microsrip antenna using simple electromagnetic band gap (EBG) substrate has higher gain than conventional microstrip antenna In this paper we propose to mushroom like Electromagnetic Band Gap (EBG) structure with different diameter of vias was designed to analyze the behavior of the EBG structure. Mushroom-like electromagnetic band-gap (EBG) structures exhibit unique electromagnetic properties that have led to a wide range of electromagnetic device applications and A simple, compact EBG microstrip antenna is proposed in this study that covers a wideband of 2.5 to 3.7 GHz ISM band, Bluetooth and UHF RFID applications. The use of the EBG Structure improves the radiation pattern of the antenna. The electromagnetic band gap structure is a periodic structure which exhibit a band gap over a certain frequency range over which the propagation of the electromagnetic wave is prohibited. Zeland IE3D simulations have been carried out to investigate and characteristics of the performance with improved design is under consideration in EBG Structure.