Simulation antenna array calibration and radio frequency signal monitoring system

Abstract

The invention relates to the technical field of radio frequency signals, and discloses a simulation antenna array calibration and radio frequency signal monitoring system. The system comprises two measurement loops which work simultaneously, namely a calibration measurement loop and a signal characteristic measurement loop; the calibration measurement loop is composed of a vector network analyzer,a microwave signal source, a channel control and frequency adaptation module, a calibration antenna and a radio frequency combination circuit; and the signal characteristic measurement loop is composed of a microwave signal source, a channel control and frequency adaptation module, a calibration antenna circular array, a radio frequency combination and a signal processing module. According to theinvention, a radio frequency signal monitoring function is integrated; the system is suitable for calibration of a radio frequency simulation antenna array and radio frequency simulation signal monitoring, can work independently without a rotary table, is high in working efficiency, and can measure radio frequency signals emitted by a simulation system in real time to obtain measurement of signalcharacteristics such as radiation intensity, signal patterns and radiation angles of the signals; and the use is convenient and the working efficiency is high.

Description

technical field [0001] The invention relates to the technical field of radio frequency signals, and mainly relates to a simulation antenna array calibration and radio frequency signal monitoring system, which is used for calibration of radio frequency simulation antenna arrays and radio frequency simulation signal monitoring. Background technique [0002] Currently, calibration using triplet-type dummy antenna arrays is usually done using a four-antenna calibration system, whose direction finding uses an interferometer regime. This calibration method needs to cooperate with the turntable to complete the calibration of the antenna array. The calibration time is long and the efficiency is low. When the array scale is relatively large, it will have a great impact on the use. Second, after this kind of calibration is completed, the calibration equipment has no monitoring function of radiation signals, and cannot monitor the working status of the simulation system. Contents of ...

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Problems solved by technology

[0003] In order to overcome the shortcomings of the existing devices in terms of efficiency and function, the present invention proposes a simulation antenna array calibration and radio frequency signal monitoring system

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