Microstrip antenna

The invention discloses a microstrip antenna, which comprises a first insulation baseplate, a second insulation baseplate, a conducting layer, a plurality of conducting bars and a supply line, wherein the conducting bars are arrayed on the upper surface of the first insulation baseplate in parallel, the conducting layer is clamped between the first and the second insulation baseplates, a slot is arranged in the conducting layer, and is overlapped with the conducting bars, and the supply line is positioned at the lower surface of the second insulation baseplate and is overlapped with the slot. Through utilizing the strong directivity characteristic of a slot-coupling antenna array, the capability of the antenna of receiving the wireless signal from the sky is increased, and the capabilities of the antenna of receiving the wireless signal reflected from the ground is weakened, through integrating the antenna onto a product main board, the cost is reduced and is even eliminated, and in addition, because the ante