Method and device for measuring radiation pattern of antenna array, and computer readable storage medium

A device for measuring a radiation pattern of an antenna array, comprising:

• an anechoic chamber;
• a rotary table, disposed in the anechoic chamber, and configured to set an antenna array;
• a plurality of testing antennas, disposed in the anechoic chamber, and
• a controller,
• wherein the controller is configured to:
• obtain a plurality of array radiation patterns corresponding to a plurality of array elements, the antenna array comprising the plurality of array elements;
• obtain a plurality of center positions corresponding to the plurality of array radiation patterns;
• feed a preset port excitation to the antenna array, to excite the plurality of array elements;
• obtain a plurality of sets of electromagnetic field measurement data of the antenna array obtained by the plurality of testing antennas, each set of the electromagnetic field measurement data comprising amplitude and phase;
• obtain an aperture field excitation based on the plurality of array radiation patterns, the plurality of center positions, positions of the plurality of measurement points and the plurality of sets of electromagnetic field measurement data;
• and
• obtain a radiation pattern of the antenna array at a target position based on the aperture field excitation, the plurality of array radiation patterns and the plurality of center positions.

A non-transitory computer readable storage medium, having computer programs stored therein, wherein when the computer programs are executed by a processor, the processor is configured to:

• obtain a plurality of array radiation patterns corresponding to a plurality of array elements, the antenna array comprising the plurality of array elements;
• obtain a plurality of center positions corresponding to the plurality of array radiation patterns;
• feed a preset port excitation to the antenna array, to excite the plurality of array elements;
• obtain a plurality of sets of electromagnetic field measurement data of the antenna array at a plurality of corresponding measurement points in a far field of the antenna array, each set of the electromagnetic field measurement data comprising amplitude and phase;
• obtain an aperture field excitation based on the plurality of array radiation patterns, the plurality of center positions, positions of the plurality of measurement points and the plurality of sets of electromagnetic field measurement data;
• and
• obtain a radiation pattern of the antenna array at a target position based on the aperture field excitation, the plurality of array radiation patterns and the plurality of center positions.