A frequency selective surface structure

A frequency selective surface and dielectric board technology, applied in the direction of circuits, waveguide devices, electrical components, etc., can solve the problems of narrow FSS working bandwidth, electromagnetic interference, polarization stability and poor incident angle stability, etc., to achieve polarization stability, Improve the working bandwidth and stabilize the angle

Active Publication Date: 2019-12-06
GUANGDONG KINGPOINT DATA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Nowadays, single-screen FSS and double-screen FSS are mostly used to solve the problem of electromagnetic interference. However, the FSS with this structure has a narrow working bandwidth, poor polarization stability and incident angle stability.

Method used

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  • A frequency selective surface structure
  • A frequency selective surface structure
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Embodiment

[0032] Such as figure 1 Shown: the first dielectric plate, the second dielectric plate, the cross ring patch and the circular ring patch form a frequency selective surface structure with three screens up and down symmetrical, and the relative permittivity of the first dielectric plate and the second dielectric plate is 2.85 , the upper surface of the first dielectric board is provided with a cross ring patch, the circular ring patch is provided between the first dielectric board and the second dielectric board, the cross ring patch is provided on the lower surface of the second dielectric board, and the first dielectric board and the second dielectric board are provided with a cross ring patch. The two medium boards are stacked up and down together.

[0033] Such as figure 2 The crossed ring patch shown includes a crossed dipole and a square ring structure. The width of the crossed dipole is 0.5 mm. The crossed dipole separates the square ring structure into four small squar...

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Abstract

The invention relates to the field of antenna technology, in particular to a frequency selective surface structure comprising a first dielectric plate and a second dielectric plate. The first dielectric plate is arranged on the second dielectric plate. A crossed annular paster is arranged at the upper surface of the first dielectric plate; a circular paster is arranged between the first dielectric plate and the second dielectric plate; a crossed annular paster is arranged at the lower surface of the second dielectric plate; and the two crossed annular pasters are distributed symmetrically by using the circular paster as the center. The first dielectric plate and the second dielectric plate are overlapped. Because of the dielectric plates having a symmetric structure, the incident signal angle becomes stable and polarization becomes stable; and the frequency selective surface has a wider operating bandwidth.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a frequency selective surface structure. Background technique [0002] In today's world, the rapid development of wireless communication makes spectrum resources more and more scarce, the application of electronic equipment in daily life is more and more common, and there are more and more useless electromagnetic interferences, which makes the electromagnetic environment worse and signal interference is getting worse. serious. [0003] Frequency selective surface (FSS) is a single-layer or multi-layer quasi-planar structure composed of the same aperture or patch units arranged in a two-dimensional periodic manner on the dielectric layer. The frequency selective surface can be used as a spatial filter. This makes FSS have great application value in the engineering field, and FSS is widely used, involving all aspects of the electromagnetic field. As an important means to solve t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/207
CPCH01P1/207
Inventor 侯大勇李青海简宋全邹立斌
Owner GUANGDONG KINGPOINT DATA SCI & TECH CO LTD
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