FSS antenna cover modeling method suitable for high-order moment method

A modeling method and radome technology, which are applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of large calculation amount of high-order moment method, so as to reduce the number, save computing resources, and reduce calculation amount of effect

Active Publication Date: 2018-07-10
XIDIAN UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and propose a FSS radome modeling method suitable for the high-order method of moment

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  • FSS antenna cover modeling method suitable for high-order moment method
  • FSS antenna cover modeling method suitable for high-order moment method
  • FSS antenna cover modeling method suitable for high-order moment method

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[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to to limit the present invention.

[0029] refer to figure 1 , a FSS radome modeling method suitable for the high-order method of moments, including the following steps:

[0030] Step 1, obtain the design parameters of the radome body:

[0031] The radome body is spliced ​​by a spherical crown and a hollow circular platform, and its structure is as follows: figure 2 As shown, in this embodiment, the thickness of the radome body is t=2mm, and the radius of the outer spherical surface of the spherical cap is r 0 =105mm, the radius of the outer circle of the upper bottom of the hollow circular platfo...

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Abstract

The invention provides an FSS antenna cover modeling method suitable for a high-order moment method, and aims to solve the technical problem of excessively large calculation amount of the high-order moment method due to excessive facets of a model in an existing modeling method. The method is implemented by the steps of obtaining design parameters of a cover body of an antenna cover; obtaining design parameters of an FSS structure passive resonance unit; according to the requirements of the high-order moment method, building a sector-ring-shaped FSS structure calculation model; and building anFSS antenna cover model. The division is performed according to the structure of the passive resonance unit and the periodic copying is performed; and non-quadrilateral facets generated by cutting the passive resonance unit are classified and divided, so that the problem of the excessively large calculation amount of the high-order moment method due to the excessive facets of the model after FSSmodeling and cutting processing in the prior art is solved and the functions of reducing the calculation amount of the high-order moment method and saving the calculation resources are realized.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic simulation, and in particular relates to an FSS radome modeling method suitable for a high-order moment method, which can be used for electromagnetic characteristic simulation analysis of an electrically large-sized FSS radome. Background technique [0002] Frequency Selective Surface (FSS) is an array composed of passive resonant units arranged periodically along one or two dimensions. FSS will generate resonance at a specific frequency, and different unit structures will generate one or more resonance points, resulting in the characteristic of selective wave transmission, which is essentially a spatial filter. Since the selective filtering characteristics of FSS match the requirements of the radome, it is widely used in the design of the radome. Adding FSS on the surface of the radome can transmit waves in the radar working frequency band and reflect in other frequency bands, so that th...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 赵勋旺林中朝路梓钰姜雪松张玉
Owner XIDIAN UNIV
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