Broadband low-profile circularly polarized antenna based on asymmetric dipoles
A circularly polarized antenna, dipole technology, applied in the direction of antenna, resonant antenna, electrical short antenna, etc., to achieve the effect of improving isolation, good directivity, wide-axis ratio bandwidth
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[0040] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it is not used as a basis for any limitation on the invention.
[0041] Such as figure 1Shown is a schematic structural diagram of the wide-band low-profile circularly polarized antenna based on the asymmetric dipole of the present invention. The antenna has a four-layer structure. The first layer of dielectric board 1 is a radiation structure with rotational symmetry printed on the upper layer of the dielectric board. It is mainly composed of four asymmetric dipoles, and each dipole includes an outer long arm 5 and an inner long arm 5. The short arm 6, the outer long arm 5 and the inner short arm 6 are connected through the balun grounding part; the second layer of dielectric board 2 is an artificial magnetic conductor (AMC) structure, sp...
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