METHOD FOR MEASURING RADIATION POWER, MEASUREMENT COUPLER FOR RADIATION POWER, AND APPARATUS FOR MEASURING RADIATION POWER

摘要

A method for measuring the radiation power of an object (1) to be measured from the output signal of a reception antenna (15) in such a way that the electromagnetic wave radiation center of the object (1) to be measured is matched to a position in the vicinity of one focus (F1) of a closed space (12) enclosed by an elliptically spherical metal wall surface (11), which is obtained by rotating an ellipse around the axis line passing through the two foci, and the electromagnetic waves radiated from the object (1) to be measured is reflected on the wall surface and is collected at the reception antenna (15) disposed at the position of the other focus (F2).  In the method, at least one of the object (1) to be measured or the reception antenna (15) is moved along the axis line passing through the two foci to maximize the output signal power of the reception antenna (15), and the maximized output signal power is stored as a first measured value.  A reference antenna (160) placed in place of the object (1) to be measured and the reception antenna (15) are moved in the same way as described above, and a measured value obtained when maximizing the output signal power of the reception antenna (15) and correction data are used to calculate the entire radiation power of the object (1) to be measured.