Abstract
With the development of reflector antennas in the direction of large-aperture, high-frequency, high-gain, etc., research on electromechanical integration has become a focused area. However, a critical problem in electromechanical integration: electromagnetic analysis calculations are gradually increasing, resulting in a decrease in the efficiency of electromechanical integration design. Consequently, it is necessary to study electromagnetic fast approximate calculation methods. While ignoring the influence of structural deformation on the aperture field amplitude term, this article first introduces the structural deformation in the form of phase error into the radiation integral formula of the physical optics method to calculate the far-field electrical properties. Then the additional phase term caused by structural deformation is expanded by Taylor series, and finally the calculation formula is organized into matrix form. This paper takes a large-scale satellite-borne deployable antenna as the research object, two typical moments when the antenna is orbiting on the vernal equinox are selected for simulation calculation, and satisfactory results are received, which verifies the correctness of the method.
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Li, D., Ni, C., Du, J., Jia, S. (2022). Approximate Calculation and Verification of Electrical Performance of Deformed Reflector Antenna. In: Duan, B., Umeda, K., Kim, Cw. (eds) Proceedings of the Eighth Asia International Symposium on Mechatronics. Lecture Notes in Electrical Engineering, vol 885. Springer, Singapore. https://doi.org/10.1007/978-981-19-1309-9_7
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DOI: https://doi.org/10.1007/978-981-19-1309-9_7
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Publisher Name: Springer, Singapore
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Online ISBN: 978-981-19-1309-9
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