Multifunctional GNSS antenna

A multifunctional GNSS antenna, comprising:

• a PCB, a first dielectric plate, and a second dielectric plate arranged in a stacked manner,
• the PCB having a lower surface provided with a circuit network, the circuit network being covered by a metal shield cover;
• the first dielectric plate having an upper surface provided with a first metal layer and a lower surface attached to an upper surface of the PCB, a first feed probe penetrating the first metal layer and the first dielectric plate to couple the first metal layer with the circuit network;
• a third metal layer being embedded in an edge and a lateral surface of the first dielectric plate, a third feed probe and a first short-circuit probe both penetrating the third metal layer and the first dielectric plate, and the third feed probe coupling the third metal layer with the circuit network while the first short-circuit probe shorts the third metal layer to the ground;
• and the second dielectric plate having an upper surface provided with a second metal layer, a second feed probe coupling the second metal layer with the circuit network after penetrating the second metal layer, the second dielectric plate, the first metal layer, and the first dielectric plate.