Patent ID: 8830127

Claim:
A patch antenna comprising: a dielectric substrate having a vertical through-hole and a recess that is open downward, the recess having an inner periphery greater than a diameter of the through-hole, the recess being connected to the through-hole; a radiation electrode provided on an upper surface of the dielectric substrate; a ground electrode provided on a lower surface of the dielectric substrate; and a feed pin inserted into the through-hole such that a lower end portion of the feed pin is arranged inside the recess, the feed pin electrically connected to the radiation electrode through an upper end portion of the feed pin, wherein first solder is applied to the lower end portion of the feed pin, and a lower end of the feed pin and a lower end of the first solder are flush with or above a lower surface of the ground electrode, wherein the feed pin has a bar shape in the lower end portion, and the first solder is a ring-shaped solid solder externally fitted to the lower end portion of the feed pin.