Patent ID: 8525744

Claim:
A radiated power measurement method comprising the steps of arranging a device under test capable of radiating a radio wave in an enclosed space having first and second focal points, in such a manner that the radiation center of the radio wave of the device under test substantially coincides with the neighborhood of the first focal point, wherein the enclosed space is defined by a metal wall surface of an ellipsoid obtained by rotating an ellipse around an axis passing through the first focal point and the second focal point; and reflecting the radio wave radiated from the device under test, on the wall surface, and receiving the radio wave by a receiving antenna arranged in the neighborhood the second focal point thereby to measure, at the measuring end of the receiving antenna, the total radiated power of the device under test from the output signal of the receiving antenna, wherein at least one of the device under test and the receiving antenna is moved along the axis passing through the first and second focal points, and based on the measurement value maximizing the output signal power of the receiving antenna, calculating the total radiated power of the device under test.