Radiation EMI (electro magnetic interference) testing method based on GTEM (gigahertz transverse electro magnetic) cell
A test method and radiation field technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of low test result accuracy, and achieve the effect of improving test accuracy and simple test method.
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[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0024] figure 1 is the internal structural parameters of the GTEM cell, where represents the width of the cell, Indicates the core plate height, represents the gap width, Indicates the height of the EUT from the floor.
[0025] figure 2 is the simulated equivalent open-field survey layout, where is the straight-line distance from the EUT to the receiving antenna, is the straight-line distance from the image of the EUT to the receiving antenna, is the horizontal distance from the EUT to the receiving antenna.
[0026] frequency pointf 0 The 10MHz standard DUT (hereinafter referred to as EUT) is placed in the GTEM cell. According to the test requirements of the total power algorithm, the equivalent voltage signal at the output port of the standard DUT is measured when it is placed in the GTEM cell in different direction...
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