A method and system for increasing the field strength in a reverberation chamber and simulating a composite field electromagnetic environment

Abstract

The invention provides a method and a system for enhancing reverberation room internal field intensity and simulating compound field electromagnetic environment. According to the method, the multi-frequency high-field-intensity complex electromagnetic environment is simulated by using a reverberation room, and the high field intensity in the test area is acquired by using the space synthesis method of the same frequency microwave power in the reverberation room; the multi-frequency compound field of the test area is acquired by using a different frequency incoherent resonance method; and multiple movable light closed good conductor metal boxes are arranged in the reverberation room so that the ineffective space of the reverberation room at the high end of frequency can be reduced and the field intensity amplitude of the test area can be enhanced. The system comprises the reverberation room, multiple movable light closed good conductor metal boxes, a radio frequency signal source, a power distributor, power amplifiers, a directional coupler, a circulator, a power meter, a transmitting antenna, a receiving antenna, an optical fiber field intensity meter, a spectrum analyzer and a measurement and control and data acquisition computer. The internal field intensity amplitude of the reverberation room is enhanced by using multiple power amplifiers and adjusting the internal structureof the reverberation room so as to simulate the multi-frequency complex electromagnetic environment in the reverberation room.

Description

technical field [0001] The invention relates to the field of complex electromagnetic environment effect tests, in particular to a method and system for increasing the field strength in a reverberation chamber and simulating a composite field electromagnetic environment, which is used for the construction of a multi-frequency composite high-field-strength electromagnetic environment for complex electromagnetic environment effect tests, so that It is more flexible and achievable to construct a complex electromagnetic environment when carrying out the electromagnetic environment effect test of electronic equipment and systems under laboratory conditions. Background technique [0002] With the development of electronic information technology, the electromagnetic environment faced by various electronic equipment and weaponry is becoming more and more complex. On the one hand, the increase in the power of the communication, radar, and electronic interference equipment inside the p...

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Problems solved by technology

[0015] The technical problem to be solved by the present invention is to provide a method and system for improving the field strength of the reverberation chamber and simulating the electromagnetic environment of the composite field in view of the above-mentioned shortcomings in the simulation of the existing high-field-strength electromagnetic environment and the simulation of the multi-frequency composite field , use multiple power amplifiers and adjust the structure inside the reverberation chamber to increase the amplitude of the field strength in the reverberation chamber, and simulate the multi-frequency complex electromagnetic environment inside the reverberation chamber, so as to meet the relevant high field strength test and compound field test Requirements for the electromagnetic environment

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