MEASUREMENT METHOD AND APPARATUS FOR RADIATED POWER TO ANTENNA

摘要

The present invention relates to an apparatus and method for measuring radiated power of an antenna. The disclosed apparatus includes a chamber having an absorber attached to a wall surface, a source antenna and a test antenna disposed inside the chamber, A roll spreader which can adjust the placement angle in the vertical direction by rotating the test antenna around the rotation axis, and a roll spreader which is rotatable in the left and right directions orthogonal to the vertical direction inside the chamber, And a support for supporting the test antenna so as to be rotatable in the left and right direction together with the rotation movement of the turntable. The radiation power of the large high gain antenna can be measured in a small to medium chamber that does not satisfy the source field condition , Most antenna measurement chambers have a roll spreader that changes the turntable and roll angle. Even if the roll purge shaper is low torque, the present invention can be applied immediately, and in addition to the Fresnel zone measurement method, If it is different from the center, there is an advantage that it can be applied to the measurement of the near field and the field force field.;