Antenna device

Abstract

An antenna device comprising a first radiation layer, a second radiation layer, a first dielectric layer, a second dielectric layer, and an excitation layer. The first radiation layer includes a first radiator, the second radiation layer includes a second radiator, the first dielectric layer includes a first hole, the second dielectric layer includes a second hole, and the excitation layer includes an excitation unit. The excitation unit is configured to excite the first radiator and the second radiator, causing the first radiator and the second radiator to radiate. The excitation layer, the first dielectric layer, the first radiation layer, the second dielectric layer, and the second radiation layer are sequentially stacked along a stacking direction. The excitation unit, the first hole, the first radiator, the second hole, and the second radiator are aligned along the stacking direction.

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