Abstract: A plate antenna module includes a first substrate unit, a second substrate unit, an adhesive unit and a pin unit. The first substrate unit including a first substrate body and a first electrode layer disposed on the top side of the first substrate body. The second substrate unit including a second substrate body disposed on the bottom side of the first substrate body, and the second substrate body has a second dielectric constant different from the first dielectric constant of the first substrate body. The adhesive unit includes a first adhesive sheet adhesively disposed between the first substrate body and the second substrate body and a second adhesive sheet adhered to the bottom side of the second substrate body. The pin unit includes a feeding pin electrically contacting the first electrode layer and sequentially passing through the first substrate unit, the second substrate unit and the adhesive unit.

Abstract: A circular polarization antenna structure with a dual-layer ceramic includes a first hard dielectric body, a first metal layer, a grounding layer, an antenna feed pin, a second hard dielectric body, a second metal layer and an adhesive element. The first metal layer and the grounding layer dispose on a top surface and a bottom surface of the first hard dielectric body. The antenna feed pin passes through the through hole of the first hard dielectric body, the top side of the antenna feed pin is fixed on the top surface of the first hard dielectric body, and the bottom side of the antenna feed pin extends outwards from the bottom surface of the first hard dielectric body. The second hard dielectric body disposes above the top side of the first hard dielectric body. The second metal layer disposes on the top surface of the second hard dielectric body.

Abstract: A circular polarization antenna structure with a dual-layer ceramic includes a first hard dielectric body, a first metal layer, a grounding layer, an antenna feed pin, a second hard dielectric body, a second metal layer and an adhesive element. The first metal layer and the grounding layer dispose on a top surface and a bottom surface of the first hard dielectric body. The antenna feed pin passes through the through hole of the first hard dielectric body, the top side of the antenna feed pin is fixed on the top surface of the first hard dielectric body, and the bottom side of the antenna feed pin extends outwards from the bottom surface of the first hard dielectric body. The second hard dielectric body disposes above the top side of the first hard dielectric body. The second metal layer disposes on the top surface of the second hard dielectric body.