Electromagnetic radiation scanning and positioning method

Abstract

The invention relates to the technical field of electromagnetic radiation scanning and positioning, and aims to provide an electromagnetic radiation scanning and positioning method to replace the mechanical scanning technology, so that the electromagnetic radiation strength in each position of a circuit to be tested can be rapidly scanned and detected, a radiation source can be fixed, and continuous scanning and dynamic display can be realized. The method adopts an array type electromagnetic radiation detecting probe and the electronic switch technology, achieves unique spectrum and space scanning functions, and realizes the effects of scanning a selected area in a frequency range, and measuring the radiation circumstance of the whole frequency band in each special position of a tested object so as to obtain complete electromagnetic field information of the tested object. Data acquired by a scanning antenna under the control of electromagnetic scanning test software is subjected to fitting processing, so as to draw an electromagnetic radiation frequency spectrum and a spatial radiation cloud picture. The invention provides the method and equipment for the field of electromagnetic radiation measure, so as to quickly perform two-dimensional electromagnetic radiation scanning and positioning in a real-time manner.

Description

Technical field: [0001] The invention relates to the technical field of electromagnetic radiation scanning and positioning. Background technique: [0002] In the invention of electronic products, with the increase of the main frequency, the increase of the wiring density, the use of the multi-level scheme and the division technology of the ground plane and the power plane, there is a large amount of radiation interference between the signals in the PCB board, resulting in equipment malfunction or Work is unstable. [0003] Traditional tools for debugging PCBs to find circuit faults include oscilloscopes in the time domain, logic analyzers, and spectrum analyzers in the frequency domain, but these methods cannot provide data that reflects the overall information of the PCB. Time-domain equipment can only observe the time-domain waveform of one or a limited number of signals; frequency-domain equipment can only give the spectrum data of a frequency segment at a certain point....

AI Technical Summary

Problems solved by technology

However, due to the characteristics of the microwave network structure of the current electromagnetic radiation scanning equipment, the measurement signal loss is large, which directly affects the sensitivity of the electromagnetic radiation scanning equipment

Its receiving equipment uses a standard spectrum analyzer, which has a slow scanning speed and cannot display the electromagnetic radiation changes of the object under test in real time and dynamically.

[0006] At present, electromagnetic radiation scanning equipment that can quickly scan electromagnetic radiation and display electromagnetic radiation distribution maps in real time has not been reported at home and abroad.

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