Electromagnetic wave cell based on array antennas

Abstract

The invention is applicable to the technical field of detection of wireless communication terminals and provides an electromagnetic wave cell based on array antennas. The electromagnetic wave cell comprises a power distributor, a plurality of array antennas, a testing platform and a high-speed data filtering interface, wherein the power distributor is located on a side wall in the electromagnetic wave cell; the plurality of array antennas are arrayed at equal interval and are connected with the power distributor; signal radiation directions of the plurality of array antennas are vertical to the upper surface of the testing platform; the power distributor is used for providing equal-amplitude and cophase excitation for the plurality of array antennas at the same time; the plurality of array antennas are used for generating radiation signals for a space respectively according to excitation, and the radiation signals are overlapped to form quasi-plane waves, so that a static region is formed on a surface of the testing platform for storing a detected part; the high-speed data filtering interface is located on the side wall of the electromagnetic wave cell and is used for transmitting a signal with a radio frequency performance of the detected part. The electromagnetic wave cell provided by the invention can be used for carrying out an accurate radio frequency performance test on a wireless communication terminal product.

Description

technical field [0001] The invention belongs to the technical field of wireless communication terminal detection, and in particular relates to an electromagnetic wave chamber based on an array antenna. Background technique [0002] With the rapid development of radio technology, new requirements are put forward for radio management workers. In order to ensure normal use from the source, it is necessary to strengthen the detection of wireless terminal equipment. The mainstream test in the existing technology is passive test and active test; the passive test examines the antenna radiation performance from the aspects of antenna gain, efficiency, pattern, etc., and cannot directly know the final transmit power and receive sensitivity after the antenna is matched with the whole machine Indicators, it is necessary to conduct an active test on the overall performance of the terminal equipment, that is, the total radiated power test for the evaluation of the mobile phone’s emission...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an electromagnetic wave chamber based on an array antenna, which aims to solve the The uneven distribution of electromagnetic waves leads to high requirements for the placement of the tested part, the need to flip the tested part during the test, and the problem of low test accuracy

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