A one-dimensional electromagnetic bandgap (1-D EBG) ground plane was designed and characterized.The 1-D EBG ground plane, composed of metal patches, metal lines, and a ground plane, has in-phase reflection characteristics when the polarization of the incident electromagnetic waves is parallel to the direction of the EBG unitcell array.The proposed 1-D EBG ground plane was applied to the design of low-profile directive dipole antennas.The radiators of the designed antennas could be placed very close to the 1-D EBG ground plane without noticeable performance degradation of the antennas.In particular, the dipole antenna designed with the 1-D EBG ground plane and directors has higher directivity and a better F-B (frontto-back) ratio as compared to a conventional dipole antenna backed with a normal ground plane.
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Kim et al. (2011) studied this question.
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