Truncated spherical radar dome and splicing method thereof

Abstract

The invention relates to a truncated spherical radar dome and a splicing method thereof. The truncated spherical radar dome comprises spherical polygon plates and truncated spherical polygon plates, wherein the spherical polygon plates comprise spherical regular pentagon plates A, first spherical hexagon plates B, second spherical hexagon plates C, third spherical hexagon plates D and spherical regular hexagon plates E; the truncated spherical polygon plates comprise first truncated spherical quadrilateral plates F, truncated spherical pentagon plates G, truncated spherical hexagon plates H and second truncated spherical quadrilateral plates I; the periphery of each spherical pentagon plate A is connected with five first spherical hexagon plates B; the periphery of each spherical regular hexagon plate E is alternately connected with the second spherical hexagon plates C and the third spherical hexagon plates D; the third spherical hexagon plates D are symmetrically connected two by two; and each second spherical hexagon plate C is connected with one first spherical hexagon plate B in two adjacent first spherical hexagon plates B. The truncated spherical radar dome is good in wave transmissivity and meets the process, transportation and installation requirements.

Description

technical field [0001] The invention belongs to the technical field of antenna protection, and in particular relates to a truncated ball radar radome and a splicing method thereof. Background technique [0002] The radar radome can eliminate the influence of the environment on the radar antenna, so that the radar antenna can work normally in complex and harsh climates. In addition to the functions of protection, conductivity, reliability, concealment and decoration, high-performance radome should also protect the antenna system from strong wind, acid rain, heavy snow, hail and scorching sun, etc. Destructive effects, prolonging the service life of various parts of the entire system, reducing maintenance costs and operating costs, simplifying design, ensuring the accuracy of the antenna surface and position, creating a good working environment, etc. [0003] The shape of the ground radome is spherical, with a diameter ranging from a few meters to more than 20 meters. In ord...

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Problems solved by technology

At this stage, large-scale ground radomes generally adopt the following segmentation methods: (1) Longitude and latitude segmentation method, which divides the spherical surface into several parts along the longitude and latitude directions. The plates are all spherical quadrilaterals, and the upper and lower sides are parallel. The disadvantage is that the connecting side ribs are parallel to each other, and the wave transmission performance is poor

(2) Spherical triangle segmentation method, this method is to divide the spherical surface into several triangles, and the plates are all spherical triangles. The disadvantage of this method is that there are six side ribs sharing one connection node, resulting in poor wave transmission performance at the connection node, and installation accuracy requirements high, difficult to operate

(3) "Football" segmentation method, which is to divide the spherical surface into twelve regular pentagons and twenty regular hexagons. This method is suitable for radome with a diameter of less than 10 meters. For a radome with a diameter of 17 meters, The size of the plate obtained by this division method is too large, which cannot be installed and transported

[0004] Unreasonable plate size will increase the types of molds, increase the production cost, make it difficult to install and transport, poor wave transmission performance, and affect the work of the antenna. Therefore, it is very necessary to divide the plates reasonably for different diameter radome

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