Standard reflecting plate for measuring errors among different testing systems and manufacturing method for standard reflecting plate
A technology of a standard reflector and a manufacturing method, applied in the field of microwave and millimeter wave testing, can solve the problems of the influence of the accurate measurement of the reflectivity of radar absorbing materials, the accuracy is very different, the accuracy of the results is different, etc., and it is easy to process, carry and use. Effect
Active Publication Date: 2014-01-22
南京南大波平电子信息有限公司
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Problems solved by technology
[0003] In China, the three methods stipulated in "National Military Standards of the People's Republic of China, Test Method for Reflectivity of Radar Absorbing Materials, GJB2038-94" are usually used to measure the emissivity of radar absorbing materials, but the accuracy of the results measured by different methods Different; the same method also has different accuracy in different environments; when the frequency band changes, the accuracy of these three measurement methods is very different, which has a greater impact on the accurate measurement of the reflectivity of radar absorbing materials
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[0017] In order to design a standard reflector with a fixed reflectivity, based on experience and previous experimental data, we designed several reference schemes for standard reflectors, performed simulation calculations on these reflectors with different shapes, and compared the use of frequency bands between 90GHz and 100GHz The stability of the lower reflectivity, and finally select the standard plate with the shape of prism for further design. Change the size of the truss, including the length of the bottom surface, the thickness of the truss, and the angle of inclination, and then perform simulation calculations on these models. Find design dimensions for different standard reflectivities. Carry out physical processing of the model according to these dimensions, and conduct on-site measurement, compare the measured value with the simulation result, fine-tune the model after the comparison, and perform simulation calculation and on-site measurement again. Finally, stand...
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Abstract
The invention relates to a standard reflecting plate for measuring errors among different testing systems, which is characterized in that: the standard reflecting plate has a pyramid shape and is made of a metal good conductor with a high dielectric constant, the side length of a bottom surface is between 20 and 100mm, the thickness is between 5 and 20mm, the inclination angle is between 15 and 90 degrees, and the standard reflecting plate is made of aluminum. The standard reflecting plate has the characteristics that the standard reflecting plate is light, compact, and easy to process, carry and use, and can be applied to the calibration, check and daily technical state verification and adjustment of a radar wave absorbing material reflectivity testing system.
Description
technical field [0001] A standard reflector for measuring errors between different test systems and a manufacturing method thereof according to the present invention belong to the technical field of microwave and millimeter wave testing, and relate to the reflectivity testing technology of microwave and millimeter wave absorbing materials, in particular to a method for different Standard reflector for the determination of inter-system error. Background technique [0002] Absorbing materials are widely used in military and civilian fields. With the rapid development of stealth technology, the requirements for the absorbing performance of absorbing materials are getting higher and higher. Reflectivity is an important index parameter used to characterize the absorbing performance of absorbing materials. Accurate measurement of reflectivity of absorbing materials is of great significance for the study of the characteristics of absorbing materials. The document "National Milita...
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IPC IPC(8): G01N22/00
Inventor 赵京城洪韬闫海伦
Owner 南京南大波平电子信息有限公司