Measurement and Detection Method of Sputtering Plate Parabolic Reflector Antenna Feed Source Processing Error
A parabolic reflector and antenna feed technology, applied in the directions of antenna radiation pattern, geometric CAD, design optimization/simulation, etc., can solve the problems of difficulty in meeting the near-field scanning size and far-field test distance of parabolic reflector antennas, and improve the Convenience and measurement efficiency, low cost, low processing difficulty
Active Publication Date: 2022-04-29
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology
[0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a measurement and detection method for the processing error of the sputter plate parabolic reflector antenna feed, which solves the problem that the general indoor measurement is difficult to meet the near-field scanning size and far-field requirements of the parabolic reflector antenna. The problem of field test distance greatly improves the convenience and measurement efficiency of sputter plate feed measurement and detection
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[0043] Such as figure 1 As shown, the present invention provides a method for measuring and detecting the processing error of the sputtering plate parabolic reflector antenna feed source, and its implementation method is as follows:
[0044] S1. Determine the energy radiation range of the feed source: analyze the design model of the sputter plate feed source, and determine the energy radiation range of the sputter plate feed source;
[0045] In this embodiment, electromagnetic simulation software is used to analyze the feed source of the sputter plate to understand the main energy radiation range of the feed source (the range of opening angle corresponding to energy attenuation -10 dB).
[0046] In this embodiment, the sputter plate feed source includes a circular waveguide and a sub-reflector connected by a dielectric lens material; the circular waveguide is connected with a hemispherical object plane reflector.
[0047] S2. Select a hemispherical reflective surface: analyze...
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The invention provides a method for measuring and detecting processing error of an antenna feed source of a sputter plate parabolic reflector, which belongs to the technical field of reflector antenna feed source measurement and detection. The combination of the hemispherical reflector and the feed source of the sputtering plate is used for near-field measurement, and it is judged whether there is a processing error in the feed source of the sputtering plate according to the near-field measurement results. Taking the sputtering plate parabolic reflector antenna working at 20.5GHz as an example, the simulated feed detection is carried out to verify the feasibility of the measurement and detection method. Compared with far-field measurement and direct near-field measurement, the present invention greatly reduces the near-field scanning size, and has the advantages of easy operation, low cost, low processing difficulty and high error sensitivity. The method can also be used to measure different types of sputtering The plate feed provides useful guidance for the batch processing and production of the sputtered plate parabolic reflector antenna.
Description
technical field [0001] The invention belongs to the technical field of reflector antenna feed source measurement and detection, and in particular relates to a method for measuring and detecting processing error of a sputter plate parabolic reflector antenna feed source. Background technique [0002] The rapid development of radar systems and satellite communications and other fields has put forward higher and higher requirements for the accuracy of the reflector antenna. The radiation performance of the reflector antenna must be guaranteed by the accuracy that can be achieved in the structure. If the reflector, feed source Errors in the structure will degrade the radiation performance of the antenna and make it unusable. Therefore, how to detect the errors of the reflector and the feed source is of great significance to the actual production and application of the reflector antenna. Common methods for detecting processing errors of reflective surfaces include mechanical meas...
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Login to View More IPC IPC(8): G06F30/20G06F30/17G01R29/10
CPCG06F30/20G06F30/17G01R29/10
Inventor 何十全闵捷
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA