Research On The Issues Of Biological Effects Of Electromagnetic Radiation

This paper contains two aspects of electromagnetic compatibility problems, one is the estimation of electric shielding effectiveness of a metallic enclosure with off-centered aperture,the other is the feasibility exploration and research of the introduction of the machine for the smart antenna test.Shielding effectiveness of a metallic enclosure with off-centered aperture:as the operating frequency of electronic equipment continues to improve, growing emission of electromagnetic radiation, the design on the electromagnetic compatibility of electronic equipment, becomes increasingly important. And the aperture set by the actual needs of cooling, ventilation, operation, destroyed the continuity of the electric shielding shell and become a weak link in electromagnetic shielding, which seriously affected the shielding effectiveness of shielding shell. Therefore, the study of the opening shape, number, size and arrangement, becomes more important for the shielding effectiveness of electronic equipment. our predecessors have done a lot of research on the numerical solution methods of electronic equipment slit shielding effectiveness. This article will be extended to high-frequency transmission line theory for the electric field shielding effectiveness analysis, And verify through computer simulation. The results of theoretical analysis and computer simulation were in good agreement.The feasibility exploration and research of the introduction of the machine for the smart antenna test:As the smart antenna in the test process from many angles, multi-faceted, multi-value heights, and the current domestic test system we use is mechanical frame, so, it needs man-made adjustment of antenna height, direction, angle under electric. It brings a lot of inconvenience, have an impact of the accuracy of the antenna test. Therefore, if introduced the test robot, it can adjust accuracy of the angles, multi-faceted, multi-value heights, operating by the background software will greatly shorten the test time, reduce labor, improve the accuracy of test results.This article is about the method by computer simulation on smart antenna radiation pattern, analysis the impact that introduce the robot into the smart antenna test. Make improvement in accordance with the results of the corresponding measures. Assess the feasibility.