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Optimal selection method of distribution of reflector antenna aperture field

A reflector and aperture field technology, applied in antennas, electrical components, etc., can solve problems such as ambiguous relationship, difficult to include all changes, difficult to obtain the optimal solution, etc., to achieve the effect of large search range and high efficiency

Active Publication Date: 2016-02-17
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

Since the high-order complex function has a certain change law, it is difficult to include all changes, and the relationship between the aperture field distribution and its corresponding radiation pattern is not clear, resulting in a long process of solving the reflector antenna aperture field, and it is difficult to obtain the optimal solution

Method used

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  • Optimal selection method of distribution of reflector antenna aperture field
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  • Optimal selection method of distribution of reflector antenna aperture field

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Embodiment Construction

[0033] refer to figure 1 , figure 2 and image 3 , a preferred method for reflector antenna aperture field distribution, characterized in that it comprises the following steps:

[0034] (1) The projection aperture 2 of the reflector antenna 1 along the radiation direction is divided into N concentric rings 3 of different diameters and a central circular area 4 located at the center of the circle; wherein, except the innermost and outermost two concentric circles Outside the ring, the inner diameter of each of the remaining concentric rings is equal to the outer diameter of its inner adjacent concentric ring, its outer diameter is equal to the inner diameter of the outer adjacent concentric ring, and the inner diameter of the innermost concentric ring is equal to the diameter of the central circular area , the outer diameter of the outermost concentric ring is equal to the diameter of the projection aperture of the reflector antenna; the concentric rings are arranged in sequ...

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Abstract

The invention relates to an optimal selection method of distribution of reflector antenna aperture field. The optimal selection method is characterized in that the method comprises steps of dividing a reflection plane projection aperture into a series of continuous annular regions and a central annular region; assuming that distribution amplitude, phase positions and polarization of electromagnetic field in each of the regions are the same; using that whether the directional diagram of integrals of reflector antenna aperture field satisfies application requirements as evaluation functions; and optimizing relative amplitude of electromagnetic field in all annular regions with the optimization method so as to obtain reflector antenna aperture field distribution satisfying the application requirements. The optimal selection method is applicable for optimal selection of all kinds of reflector antenna aperture fields.

Description

technical field [0001] The invention discloses an optimal method for the distribution of the aperture field of the reflector antenna, which can effectively solve the problem of solving the distribution of the reflector antenna aperture field meeting the application requirements, realize a predetermined antenna radiation pattern, and is suitable for various reflector antennas. Background technique [0002] Reflector antenna is a typical form of high-gain antenna, which has a wide range of applications in satellite communication, radio astronomy, radar, radio monitoring and many other fields. Since the radiation field of the reflector antenna can be obtained by integrating the electromagnetic field distribution on the aperture surface, by controlling the electromagnetic field distribution on the reflector antenna aperture, the reflector antenna pattern can be controlled to achieve the expected radiation performance. [0003] At present, the choice of the reflector antenna aper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q19/10H01Q15/14
CPCH01Q15/14H01Q19/10
Inventor 伍洋刘胜文杜彪吴建明
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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