Electromagnetic wave cell based on array antennas

An array antenna and electromagnetic wave chamber technology, applied in radio transmission systems, electrical components, transmission monitoring and other directions, can solve the problems of low test accuracy, uneven distribution of simulated electromagnetic waves, and high requirements for the placement of the DUT, and achieve test accuracy. Raised, regular structure, small size effect

Active Publication Date: 2017-06-13
SHENZHEN TOJOIN COMM TECH
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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 distri

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  • Electromagnetic wave cell based on array antennas
  • Electromagnetic wave cell based on array antennas

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[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0022] The main realization idea of ​​the present invention is: an electromagnetic wave chamber based on an array antenna is designed, a number of array antennas, power distributors and high-speed data filtering interfaces are designed in the electromagnetic wave chamber, and the power distributor is placed in the electromagnetic wave chamber When an external instrument provides an excitation signal to the electromagnetic wave chamber, the power divider equally divides the excitation signal into the several array antennas, and the several array antennas generate Radiate signals and superimpos...

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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...

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Application Information

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IPC IPC(8): H04B17/00H04B7/0426
CPCH04B7/0426H04B17/0085
Inventor 李银虎张宁宁钟盼希巫新华韩朱明李银龙
Owner SHENZHEN TOJOIN COMM TECH
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