Estimation method for uniform region of radiation field of bipyramid-plane wire grating horizontally polarized antenna

Abstract

The invention discloses a method for estimating a uniform region of a radiation field of a bipyramid-plane wire grid horizontally polarized antenna. The method comprises the following steps: determining the range of the height h of a uniform region in the bipyramid-plane wire grid antenna; for given h, calculating a polarization component E1 of a radiation field at a position which is just below the center of the double cone and is away from the ground by a height h; setting the maximum attenuation of the amplitudes of the radiation electric fields at all positions in the uniform region relative to the E1 as D dB, calculating the minimum value of the electric field component meeting the amplitude requirement of the uniform region, and recording the minimum value as E2; calculating the distance r2 from a point with the radiation field intensity of E2 under the center of the bipyramid to the center of the bipyramid; calculating the shortest distance dr from the point (0, 0, h) to the polar plate on one side; calculating a reference distance threshold rt; a range of the uniform zone is determined. According to the method, the size of the uniform region of the radiation field of the bipyramid-plane wire grating horizontally-polarized antenna can be rapidly estimated, and reference is provided for research on the electromagnetic environment effect of an electronic system.

Description

technical field [0001] The invention relates to the technical field of electrical performance testing devices, in particular to a method for estimating the uniform area of ​​the radiation field of a biconical-planar wire grid horizontally polarized antenna. Background technique [0002] The size of the uniform area of ​​the radiation field is an important indicator of the simulator. Determining the range of the uniform field is the basis for the study of electromagnetic environmental effects. Only by mastering the distribution of the simulator space field and providing a uniform field space for the effector can the effect be guaranteed. Accuracy, validity, and reliability of data acquisition and analysis in experiments. [0003] The International Electrotechnical Commission standard IEC61000-4-32 and the US military standard MIL-STD-461F define the uniformity of the simulator field as: in the entire test area, the ratio of the minimum and maximum pulse peak values ​​of the m...

AI Technical Summary

Problems solved by technology

The radiative electromagnetic pulse simulator produces a transient electromagnetic pulse field, and a single pulse contains a large number of frequency points from low frequency to high frequency. Whether the above uniformity test method can be directly applied remains to be further demonstrated

Images