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An active frequency selective surface suitable for electromagnetic switches

A frequency selective surface, electromagnetic switch technology, applied in circuits, electrical components, radio wave measurement systems, etc., can solve the problem of not considering polarization stability, and achieve independent polarization control and polarization stability, easy processing, The effect of good application prospects

Active Publication Date: 2020-02-21
SHANGHAI RADIO EQUIP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design method has a wide application background in the fields of radomes, absorbing materials, omnidirectional scanning antennas, and phased array radars, but it does not consider the technical issues of polarization stability

Method used

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  • An active frequency selective surface suitable for electromagnetic switches
  • An active frequency selective surface suitable for electromagnetic switches
  • An active frequency selective surface suitable for electromagnetic switches

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Embodiment Construction

[0023] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0024] The positive side and the negative side mentioned in the present invention all refer to figure 1 shall prevail, of which figure 1 The upper surface is the front side, figure 1 The lower surface of is the reverse side.

[0025] combine Figure 1~3 As shown, the present invention is an active frequency selective surface suitable for electromagnetic switches, comprising: a dielectric substrate, a plurality of upper layer four linear patch structural units, a plurality of lower layer four linear patch structural units, a plurality of said The four linear patch structural units of the upper layer are respectively etched periodically on the front surface of the dielectric substrate; the four linear patch structural units of the lower layer are respectively periodically etched on the reverse surface of the die...

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Abstract

The invention discloses an active frequency selective surface suitable for an electromagnetic switch, comprising: a dielectric substrate, a plurality of first-layer structural units, a second-layer structural unit having the same number as the first-layer structural units, and a plurality of first-layer structural units. The layer structure unit and the second layer structure unit are periodically arranged on the upper surface and the lower surface of the dielectric substrate; the first layer structure unit and the second layer structure unit respectively include a plurality of metal patches, each metal patch Both ends are respectively provided with metal through holes, which are used to connect the metal patches in the first layer of structural units and the metal patches in the second layer of structural units; each metal patch is provided with a gap, and each gap A PIN tube is provided at the place; edge feeders for biasing each PIN tube are provided along the edge of the dielectric substrate on the upper surface or the lower surface of the dielectric substrate. The invention has the advantages of easy processing, simple structure and simple operation, and can be applied to intelligent stealth radome, intelligent filter and the like.

Description

technical field [0001] The invention relates to the field of radome design, in particular to an active frequency selective surface with stable polarization and adjustable polarization which has a switch function for a specific frequency band. Background technique [0002] Frequency Slective Surface (FSS) is a periodic array structure composed of a large number of resonant units (metal patches or slots), which can effectively control the reflection and transmission of electromagnetic waves of specific frequencies, and is widely used in spatial filters and radomes . Compared with the traditional radome, the frequency selective surface radome can not only improve the wave transmission rate in the radar working frequency band to ensure the normal operation of the radar, but also reduce the electromagnetic wave reflectivity outside the working frequency band to obtain a good stealth effect. However, once the frequency selective surface is processed, its electrical characteristic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00H01Q1/42H01P1/20G01S7/02
CPCG01S7/02G01S7/027H01P1/20H01Q1/42H01Q15/002
Inventor 樊康顾昊纪磊骆定一应小俊
Owner SHANGHAI RADIO EQUIP RES INST