EBG antenna technology for different applications

EBG technology has been shown in last years as an alternative for designer which can benefit from the different properties presented by these periodic structures. However, the number of designs which comply with specifications of tangible applications were limited. Therefore the work presented in this paper is focused in showing the advantages that can be achieved by the used of EBG technology, covering specific applications, taking advantage of diverse properties of EBG materials, i.e.: the presence of a forbidden frequency band (bandgap); the design of resonant cavities which can be used to elongate the radiation aperture of antennas, increasing consequently the directivity; or at last, the use of the property presented by EBG - AMC (Artificial Magnetic Conductor) structures to reflect incident waves with a 0° phase value at the working frequency, behaving as a perfect magnetic conductor.