Plane array antenna for receiving satellite broadcasting

A plane array antenna for receiving a satellite broadcasting, with an optimum combination of the plane array antenna main body having a tilt angle, the converter combined with this antenna main body through the power supply portion, and the rotation mechanism for rotating the antenna main body within almost a horizontal plane for tracing the azimuthal angle direction. The plane array antenna main body (10) has the central power supply type structure having the power supply portion (13) formed at the center of the rotation. The converter (20) includes the dielectric substrate (21) having the microstrip channel (21a) formed on the substrate and the casing (22) for accommodating the substrate, and is fixed downward the antenna main body (10) and supports the main body. The power supply portion includes the power supply probe (13) with an insulation covering, having a space formed at its front end portion with the antenna main body (20), with the front end portion inserted into the space, having the central portion piercing through the casing (22) of the converter, and having the lowest end portion combined with the microstrip channel (21a). The rotation mechanism includes the cylinder body (31) projecting downwards from the bottom surface of the antenna main body (10) at the outside of the converter (20) and the driving mechanism for providing a rotation power to the cylinder body (31).