Quick testing method for radiation characteristic of array antenna

Abstract

The invention provides a quick testing method for the radiation characteristic of an array antenna. In a non-darkroom environment, a transceiver is used for emitting a signal to the antenna to be tested, a probe moving according to a track is used for receiving the signal and transmitting the signal back to the transceiver, a main control computer is used for calculating an output port surface near field value, a directional diagram of the array antenna to be tested is synthesized according to the output port surface near field value, and then a parameter value of the radiation characteristic of the array antenna is obtained. The method has no special requirement for the testing environment and is not limited by site size, weather and the like, a strict shield chamber is not needed, testing can be carried out in the production environment or the research and development environment of the antenna, testing speed and efficiency are high, the testing devices occupy a small area, testing can be carried out anytime conveniently and rapidly, the testing result is comprehensive and accurate, and the method is particularly suitable for quick detection of antenna products on a production line and being used for primary detection of the antenna during product research and development.

Description

technical field [0001] The invention relates to a method for quickly measuring radiation characteristics of an array antenna, belonging to the technical field of array antennas. Background technique [0002] With the development of wireless communication technologies such as mobile communication, antenna technology has also developed rapidly. Among them, the array antenna has been more and more widely used due to its diversity of feeding excitation sources, flexibility of scanning form, conformal design and intelligent management, and has become the largest installed capacity in the mobile communication cellular network. kind of antenna. In my country, due to considerations of capital and land, environmental protection, construction period, etc., multiple cellular systems of multiple operators are usually set up on the same base station, multiple cellular systems share a tower, and each cellular system When multiple antennas are configured, the same-site interference proble...

AI Technical Summary

Problems solved by technology

The algorithm of the near-field measurement method is complex, and the multi-probe technology brings a series of problems such as the consistency of the probes and position correction. In order to reduce the mutual interference between the probes, the test system cannot be too small, or the number of probes cannot be too many

Therefore, the composition of the near-field measurement system is complex, and the cost of calibration and maintenance is high.

[0008] The above two methods of testing antenna radiation characteristics have strict requirements for the test site, and the test equipment is huge, the test speed is slow, the efficiency is low, the test cost is high, and the rapid and timely measurement of the antenna cannot be realized.

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