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EBG (Electromagnetic BandGap) structures have lately attracted considerable attention both for the surface wave suppression and low profile antennas. To achieve low profile antennas by using an EBG structure for the antenna substrate, the thinner EBG substrate as well as the smaller gap to the antenna above the EBG substrate is important. Furthermore, a smaller EBG substrate area is required to accommodate...
By using the image theorem, the relation between the reflection phase of an infinite plane and the input impedance of the dipole antenna just above the plane has been discussed. It has been confirmed that the dipole antenna matches with 50 Omega when the reflection phase is around pi/2, and it is similar to the dipole antenna above an EBG structure. We have proposed the novel small structure which...
EBG (electromagnetic bandgap) structures have lately attracted considerable attention both for the surface wave reduction and low profile antennas. One of the most remarkable features of EBG structures is their periodicity. Brillouin pointed out the bandgap phenomena by the periodic structure early in the 20th century. Indeed, the surface wave reduction by EBG structures is explained in the same way...
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