Horn antenna
A technology of horn antenna and horn, which is applied in the direction of antenna, waveguide horn, electrical components, etc., can solve the problem that the phase inconsistency cannot be fundamentally eliminated, and achieve the effect of simple structure, small half-power angle and good directivity
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[0030] Hereinafter, the present invention will be further described in detail with reference to the examples and drawings, but the implementation of the present invention is not limited thereto.
[0031] Such as figure 1 As shown, a horn antenna includes a feed source 1 and a horn 2, and a multilayer metamaterial medium 3 is filled in the horn 2.
[0032] The horn antenna emits electromagnetic wave signals from the feed source 1, and enters the metamaterial medium 3 through the horn 2 for electromagnetic wave convergence, and through the refractive index distribution inside the metamaterial medium 3, the horn antenna has the characteristics of high gain and good directivity. .
[0033] In order to make the horn antenna have the above characteristics, that is, to ensure that the electromagnetic waves have the same phase when the electromagnetic waves are emitted from the horn surface, that is, equal phase transmission, it is usually achieved by changing the refractive index inside the...
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