Shielding effectiveness flange coaxial testing device for planar type electromagnetic shielding material
A technology of electromagnetic shielding materials and testing devices, which is applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., to achieve the effect of improving standing wave ratio and improving test accuracy
Inactive Publication Date: 2015-06-24
SHANGHAI INST OF MEASUREMENT & TESTING TECH
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[0010] However, all of the existing technologies are linear transition sections. Although it makes up for the sudden change between the N-type coaxial interface and the flange test fixture to a certain extent, it still produces
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[0024] The present invention may have many embodiments and various combinations, and specific embodiments will be described in detail with reference to the accompanying drawings. However, this is not to limit the present invention to these embodiments in any way, and any combinations, equivalents and substitutions based on the essence and technical scope of the present invention that are interpreted by these embodiments fall within the protection scope of the present invention .
[0025] The words used in the description are for the purpose of describing particular embodiments only, and do not limit the invention in any way.
[0026] Before describing the drawings in detail, it is worth noting that the components described are divided according to their main functions. That is to say, two or more components can be combined into one component, or one component can be divided into two or more components according to their functions. Moreover, each component described below not...
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The invention discloses a shielding effectiveness flange coaxial testing device for a planar type electromagnetic shielding material. The shielding effectiveness flange coaxial testing device comprises an N-type coaxial interface, an outer conductor and an inner conductor, wherein the outer conductor comprises an N-type coaxial interface outer conductor part, a transition section outer conductor part and a testing clamp outer conductor part with a flange, and the transition section outer conductor part is connected between the N-type coaxial interface outer conductor part and the testing clamp outer conductor part with the flange; the inner conductor comprises an N-type coaxial interface inner conductor part, a transition section inner conductor part and a testing clamp inner conductor part with a flange, wherein the transition section inner conductor part is connected between the N-type coaxial interface inner conductor part and the testing clamp inner conductor part with the flange, and the inner surface of the transition section outer conductor part and the transition section inner conductor part have secondary curve outlines. The capacitance compensation method is adopted in the shielding effectiveness flange coaxial testing device, so that the device matching performance is guaranteed, the standing-wave ratio is improved, and the testing accuracy is improved.
Description
technical field [0001] The present invention relates to a test device, and more particularly, the present invention relates to a quadratic flange coaxial test device for testing the shielding effectiveness of planar electromagnetic shielding materials. Background technique [0002] With the rapid development of electronic information technology in modern society, the use of various electronic information products has increased sharply, and the electromagnetic energy radiated by electromagnetic waves to the natural environment in which people live is growing rapidly at a rate of about 10% per year, and electromagnetic radiation pollution has changed accordingly. It has become the fourth largest source of pollution after air pollution, water pollution and noise pollution. The radiation of electromagnetic waves will not only affect and interfere with the normal operation of electronic equipment, but the leaked electromagnetic waves will also affect the information security of c...
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Inventor 陈超婵蔡青缪轶朱建刚左建生
Owner SHANGHAI INST OF MEASUREMENT & TESTING TECH