Silicon-based broadband wide-angle scanning antenna unit
An antenna unit, wide-angle scanning technology, applied in the direction of the connection of the antenna grounding switch structure, the structure of the radiating element, etc., can solve the problem that the radiation efficiency of the all-silicon integrated antenna unit cannot meet the general application requirements, the processing accuracy is high, and the dielectric The problem of high electrical constant can reduce the integration accuracy requirements, reduce the antenna profile, and reduce the cost of the antenna.
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[0027] combine Figure 1-Figure 5 The silicon-based wide-bandwidth angular scanning antenna unit of this embodiment consists of a rectangular patch 1, a glass substrate 2, a slot-coupled feeding layer 3, a silicon-based substrate integrated waveguide back cavity 4, and an impedance transformation layer 6 from top to bottom. The slot coupling feeding layer 3 is provided with a rectangular hollow part, and the rectangular hollow part is covered by the rectangular patch 1 in the vertical direction; The base metallization shielding via hole 5, the silicon base metallization shielding via hole 5 is a hollow or solid cylinder made of metal; the silicon base metallization shielding via hole 5 will connect the gap coupling feed layer 3 and impedance transformation Layer 6 is connected, and the impedance transformation layer 6 is a common-ground coplanar waveguide structure, and the strip-shaped extension part in the middle is a microstrip feeding transmission line 7 . In this embodim...
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