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Active frequency selective surface suitable for electromagnetic switch

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, achieve independent polarization control and polarization stability, good application prospects , the effect of easy processing

Active Publication Date: 2018-06-01
SHANGHAI RADIO EQUIP RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Active frequency selective surface suitable for electromagnetic switch
  • Active frequency selective surface suitable for electromagnetic switch
  • Active frequency selective surface suitable for electromagnetic switch

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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 present invention discloses an active frequency selective surface suitable for an electromagnetic switch. The active frequency selective surface comprises a dielectric substrate, a plurality of first-layer structural units and the second-layer structural units having the same number with the first-layer structural units, and the plurality of first-layer and second-layer structural units are arranged on the upper and lower surfaces of the dielectric substrate respectively and periodically and respectively comprise a plurality of metal patches, and the metal through holes are arranged at thetwo ends of each metal patch respectively and are used to communicate the metal patches in the first-layer structural units and the metal patches in the second-layer structural units. Each metal patch is equipped with a gap, a PIN pipe is arranged at each gap, and the edge feeder lines used for biasing the PIN pipes are arranged on the upper or lower surface of the dielectric substrate along theedges of the dielectric substrate. The active frequency selective surface of the present invention has the advantages of being easy to process and easy and simple to operate, being simple in structure, being applied to the aspects, such as an intelligent invisible antenna cover, an intelligent filter, etc.

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 Applications(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
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