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Mutual coupling reduction technique using novel soft surface structures has been investigated. Conventional soft surface structures are made on the ground plane of the antenna. But this new structure does not require a ground plane, it has very simple structure. It shows better mutual coupling reduction characteristic than conventional soft surface structures. This structure can be applied for surface...
In this paper, to suppress the surface wave in dielectric substrate novel soft surface structure is proposed. In case of microstrip patch antenna design with finite ground plane, most of the backward radiation is induced due to surface waves which flow through the ground plane. By using the proposed soft surface structure, backward radiation power of a microstrip patch antenna is reduced -7 dBi compare...
A microstrip patch antenna fabricated on a substrate, shows significant performance degradation by surface waves. Particularly when the patch antenna is printed on high dielectric substrates or thick substrate, its front-to-back ratio is considerably affected. Various solutions for the surface wave suppression such as photonic bandgap (PBG), electromagnetic bandgap (EBG), micromachining technology...
In this paper, the high gain and broadband antenna operating for SDMB (Satellite Digital Multimedia Broadcasting) system is proposed. The proposed antenna consists of the SAP (Shorted Annular Patch) structure, which inhibits surface-wave and the parasitic SAP element with spacing of 0.25 lambda0 in order to improve gain, bandwidth and directivity. The RHCP (Right Hand Circular Polarization) is generated...
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