Patent ID: 8686914

Claim:
An antenna module for transmitting a wireless signal, comprising: a reflective superstrate, comprising a third surface and a fourth surface, wherein the third surface is opposite to the fourth surface; an antenna substrate, comprising a first surface and a second surface, wherein the first surface is opposite to the second surface; a feed conductor, disposed on the first surface; a ground layer, disposed on the second surface; and a reflective pattern, formed on the third surface and faces the feed conductor, wherein a reflection gap is formed between the reflective pattern and the ground layer, and the feed conductor is located between the ground layer and the reflective pattern, wherein the wireless signal has a wavelength Î», and the reflection gap is between Î»/20 and Î»/80, wherein the reflective pattern comprises a plurality of reflective units, each reflective unit comprises a major axis and a minor axis, the reflective units are equidistantly arranged along a first direction, and the minor axes of the reflective units are parallel to the first direction, wherein the reflective units are longitudinal, wherein each reflective unit has two ends, and each of the ends of the reflective unit is shorted to the ground layer.