Method, apparatus and system for measuring total radiated power of array antenna

An apparatus for measuring total radiated power (TRP) of an array antenna, comprising:

• at least one processor configured to:
• determine grid spacings of sampling points of the array antenna in a normalized wave vector space;
• determine uniform sampling points in the normalized wave vector space according to the grid spacings;
• determine corresponding non-uniform sampling points in an angle space according to the uniform sampling points in the normalized wave vector space;
• and
• measure equivalent isotropic radiated power (EIRP) in the angle space according to positions of the non-uniform sampling points in a spherical coordinate system, and determine the TRP according to the EIRP.

A system for measuring total radiated power (TRP) of an array antenna, comprising:

• an equipment under test fixed on a turntable, a test antenna system, a power detector and a test machine, wherein the equipment under test comprises the array antenna and a radio remote unit which are integrated together, the power detector is connected to the test antenna system, and the test machine is connected to the equipment under test, the turntable, the test antenna system and the power detector, respectively;
• and
• wherein the test machine comprises at least one processor configured to:
• determine grid spacings of sampling points of the array antenna in a normalized wave vector space;
• determine uniform sampling points in the normalized wave vector space according to the grid spacings;
• determine corresponding non-uniform sampling points in an angle space according to the uniform sampling points in the normalized wave vector space;
• and
• measure equivalent isotropic radiated power (EIRP) in the angle space according to positions of the non-uniform sampling points in a spherical coordinate system, and determine the TRP according to the EIRP.