On distorted surface analysis and multidisciplinary structural optimization of large reflector antennas

Wang, C. S.; Duan, Baoyan; Qiu, Yuanying

doi:10.1007/s00158-006-0062-6

Cited by 37 publications

(23 citation statements)

References 13 publications

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“…Therefore, in order to find the relationship between comprehensive properties with structural parameters and a variety of errors, we should start from viewpoint of mechanical-electrical crossover as well as two-field coupling, identify the quantitative relationship of them and get effective solving strategies, then validate it through the test. Based on this idea, the literature [21][22][23][24] systematically studied and obtained the following field-coupling model.…”

Section: A Dual-band (S/x) Land-based 40m-diameter Round and Parabmentioning

confidence: 99%

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Multidisciplinary Optimization of Microwave Antennas

Duan

2013

54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

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The microwave antennas mentioned in this paper include microwave reflector antenna, plate slot-array antenna and active phased array antenna, in which the fields of electromagnetic, structural deformation and temperature interrelate or interact with each other. This interrelationship is, in this manuscript, called the multi-field coupling problem of microwave antenna. To design microwave antenna with high performance, it is significant to establish the field-coupling model and understand the coupled mechanism of these three fields radically. This thesis aims to illuminate the solution strategies and methods of field-coupling theoretical model, based on which, the multidisciplinary optimization model will be set up.

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Section: A Dual-band (S/x) Land-based 40m-diameter Round and Parabmentioning

confidence: 99%

“…However, the strict requirements cause the difficulty between electrical performance and structural design, and the homology problem of antenna in the elevation range with 5~95°. With the optimization model shown in(21) …”

mentioning

confidence: 99%

Multidisciplinary Optimization of Microwave Antennas

Duan

2013

54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

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“…In the complicated electromagnetic jamming condition caused by a large number of other objects, the high gain and low sidelobe of array antenna are crucial parameters for the accurate acquisition of the targets' state [8,9]. However, affected by the fabrication accuracy and temperature load, the actual position of array element is inevitably deviated from its nominal position, resulting in a significant decrease in the gain and a severe increase in the side lobes [10][11][12][13][14][15][16]. This paper focusses on the design method of the position tolerance of antenna element.…”

Section: Introductionmentioning

confidence: 99%

Position Tolerance Design Method for Array Antenna in Internet of Things

Wang

Yuan

Yang

et al. 2018

Wireless Communications and Mobile Computing

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The position error of array antenna significantly deteriorates the gain and sidelobe of the array, which seriously hinders the realization of high performance of communication antenna for Internet of Things (IoT). Based on the sensitivity analysis theory, the sensitivity of the array radiation field with respect to the position of the antenna element is derived. Besides, a novel design method of position tolerance for array antenna is proposed and applied to a 20 × 20 planar array. Compared with the array designed by traditional method, the gain loss is basically the same (being 0.5 dB), while the peak sidelobe level is lowered by 1.937 dB ( = 0 ∘ )/1.586 dB ( = 90 ∘ ). Besides, the uncertainty analysis results show that the newly designed array has a much higher chance to achieve the desired performance, which fully demonstrates the innovation and effectiveness of the new method.

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“…Since Ruze published the first work on this subject and pursued the effect of small phase and amplitude error on the average sidelobe level [1]. Influence of the error on the radiation characteristic of reflector antenna has been studied by a number of authors and achieved significant achievements [4][5][6][7]. But researches on effect of the random error on the radiation characterize were mainly focused on the system error, while the random error in micro-nanoscale was paid little attention.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Random Error on the Radiation Characteristic of the Reflector Antenna Based on Two-Dimensional Fractal

Duan

Zheng

2012

International Journal of Antennas and Propagation

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Influence of the random error due to the distortion of the antenna reflector was discussed by using the two-dimensional fractal model. Firstly, a mathematical model of the random error was presented to investigate its impact on the radiation characteristic of the antenna, which was filtered from the two-dimensional fractal by using the wavelet analysis method. Based on the error model, a density formulation of the far field of the antenna with random error was deduced. Finally, a 3.7 m and a 3 m antennas were used to validate the proposed models, and a novel simulation method was put forward to remedy the deficiencies of existing software tools for the antenna with error. Results of the proposed methods showed a good agreement with the experimental data, and the existence of error broadened the beam width and raised the sidelobe level of the antenna, while it had little influence to the antenna gain. By comparison on results of the different scales error, the main influencing parameter of error was found out, which can provide the theoretical foundation for the control of the antenna surface working.

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On distorted surface analysis and multidisciplinary structural optimization of large reflector antennas

Cited by 37 publications

References 13 publications

Multidisciplinary Optimization of Microwave Antennas

Multidisciplinary Optimization of Microwave Antennas

Position Tolerance Design Method for Array Antenna in Internet of Things

Effect of the Random Error on the Radiation Characteristic of the Reflector Antenna Based on Two-Dimensional Fractal

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