Multi-layer metamaterial surface structure for realizing multi-band frequency selective wave transmitting angles

A frequency selection and metasurface technology, applied in waveguide devices, electrical components, circuits, etc., can solve problems such as high cost, difficult maintenance, and complex structure, and achieve low cost, easy maintenance, and fewer structural parameters.

Active Publication Date: 2017-06-30
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technologies mentioned above all introduce active technology, and use diodes and feed networks that adjust the bias voltage of the diodes to achieve beam control and resonant frequency control. Compared with pure passive beam control, the cost is high. Complex structure and difficult to maintain

Method used

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  • Multi-layer metamaterial surface structure for realizing multi-band frequency selective wave transmitting angles
  • Multi-layer metamaterial surface structure for realizing multi-band frequency selective wave transmitting angles
  • Multi-layer metamaterial surface structure for realizing multi-band frequency selective wave transmitting angles

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1, a double-layer metamaterial surface structure for dual-band frequency-selective wave-transmission angles.

[0029] refer to image 3 , the metasurface unit 1 of this example includes two layers of dielectric substrates 11, 12, the first layer of dielectric substrate 11 is printed with a metal patch 111, the second layer of dielectric substrate 12 is printed with a metal patch 121, the second layer of dielectric substrate 12 is printed with a metal patch 121, and the second layer of The metal patch 121 is rotated 180 degrees relative to the first metal patch 111, and each metal patch is etched with upper and lower asymmetrical double-opening annular gaps, that is, the first layer of metal patch 111 is etched with upper and lower asymmetrical double openings An annular slit 1111 , the second-layer metal patch 121 is etched with an upper and lower asymmetric double-opening annular slit 1211 .

[0030] Both the first dielectric substrate 11 and the second die...

Embodiment 2

[0033] Embodiment 2, a three-layer metamaterial surface structure for three-band frequency-selective wave-transmission angles.

[0034] refer to Figure 4, the metasurface unit 1 of this example includes three layers of dielectric substrates 13, 14, 15, the first layer of dielectric substrate 13 is printed with a metal patch 131, the second layer of dielectric substrate 14 is printed with a metal patch 141, and the second layer of dielectric substrate 14 is printed with a metal patch 141. The metal patch 151 is printed on the three-layer dielectric substrate 15, the second layer metal patch 141 is rotated 180 degrees relative to the first layer metal patch 131 and the third layer metal patch 151, and each metal patch is etched There are upper and lower asymmetrical double-opening annular gaps, that is, the upper and lower asymmetrical double-opening annular gaps 1311 are etched on the first layer of metal patch 131, and the upper and lower asymmetrical double-opening annular g...

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Abstract

The invention provides a multi-layer metamaterial surface structure for realizing multi-band frequency selective wave transmitting angles. The invention aims to solve the technical problem of difficulty in realizing multi-band regulation due to complex structures of existing active technologies in wave beam regulation. The multi-layer metamaterial surface structure is composed of a plurality of metamaterial surface units (1) which are distributed periodically; each metamaterial surface unit (1) includes N layers of dielectric substrates (2), where N is smaller than or equal to 5; each layer of dielectric substrate is printed with a metal patch (3); a double-opening annular slot (4) which is asymmetric in a vertical direction is formed in the metal patch (3) through etching; and the metal patches on the odd-number layers of dielectric substrates are arranged in a manner that the metal patches on the odd-number layers of dielectric substrates are rotated by 180 degrees relative to the metal patches on the even-number layers of dielectric substrates, so that coupling can be generated in the multi-layer metamaterial surface structure; and N-1 wave transmitting frequency bands are increased in low-frequency bands, so that electromagnetic waves can be subjected to frequency selective wave transmitting angular transmission in a plurality of frequency bands. The multi-layer metamaterial surface structure of the invention has the advantages of simple structure, convenient processing and easiness in maintenance, and can be used for the design of a multi-functional radome.

Description

technical field [0001] The invention belongs to the technical field of frequency control devices, and in particular relates to a multi-layer metamaterial surface structure, which can be used to realize frequency-selective angle wave penetration under multiple frequency bands. [0002] technical background [0003] The frequency-selective wave-transmitting angle metamaterial surface is a frequency-selective surface FSS that realizes angle-selective wave-transmission by changing the wave-transmitting frequency. Because it can show a frequency-selective characteristic of total transmission for incident electromagnetic waves, it can be effectively used in many applications. Band radome design field. [0004] When FSS is applied to complex antenna systems, especially in the integrated design of antennas and multi-functional radome, the role of FSS is not limited to frequency selective filtering, but also requires the FSS radome to be able to achieve frequency selective filtering o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q17/00H01P1/20
CPCH01P1/20H01Q17/00
Inventor 杨锐杨佩陈永朝刘瑾王青雷振亚
Owner XIDIAN UNIV
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