Abstract: The periodic structure like electromagnetic band gap (EBG) is a very popular topic within the academia and RF-microwave industry due to their surface wave suppression property. In this paper the combination of the rectangular microstrip patch antenna fabricated on the top of the substrate FR4 with Electromagnetic Band Gap (EBG) structures at patch is proposed and investigated. A reduced sized antenna with microstrip feed is designed for its gain behaviour. First, the small size antenna is investigated by reducing its patch size. Further its gain behaviour is achieved by using serial feed 4x1 array with Square EBG. The antenna has been designed on FR4 substrate with dielectric constant 4.4 and thickness h=1.6 mm & its dimension is 118.0 mm × 175.0.....
Keywords: Antenna array, EBG structure, Microstrip patch, Square unit cell,WLAN band and half/quarter/sixth part of patch
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