ANTENNA

摘要

PURPOSE:To irradiate a service area efficiently by controlling even the beam direction of a transmitting antenna on the basis of a beacon station installed on the earth. CONSTITUTION:A radio wave from a beacon station on the earth is reflected by a transmitting antenna 1 and converged to a receiving horn 2. The receiving horn 2 consists of normally >=2hr and angle information for correcting a beam shift from the sum and difference between received waves of those horns through a receiver 3 is supplied in the form of a DC signal. The DC signal is inputted to an antenna beam direction controller 4 to drive the transmitting antenna 1, directing the beam of the transmitting antenna 1 correctly all the time.