Low-profile broadband wide-angle tight coupling antenna unit and array
An antenna unit and antenna array technology, which is applied in the field of radar and communication, can solve the problems of difficult and accurate modulation of antenna unit coupling, difficulty in designing ultra-wideband feeding balun, and small size of antenna array, and achieve simple feeding, processing, assembly and welding The effect of low difficulty and compact structure
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[0038] Below, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments.
[0039] A low-profile wide-bandwidth angle tightly coupled antenna unit, which sequentially includes a wide-angle matching layer, a coupling layer, an antenna layer, and a feeding layer from top to bottom;
[0040] The wide-angle matching layer includes a first dielectric substrate;
[0041] The coupling layer includes a second dielectric substrate, on the upper surface of the second dielectric substrate, a semi-coupling patch is provided at each edge position of the opposite side; the semi-coupling patch is located on the first dielectric substrate and the second dielectric substrate between;
[0042] The antenna layer includes a third dielectric substrate; the lower surface of the third dielectric substrate is provided with a metal floor, and a feeding slot is provided in the middle of the metal floor; the upper surface of the third dielectr...
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