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A Frequency Selective Surface with Adjustable Angle Response

A technology of surface selection and frequency modulation, applied in the direction of antennas, radiation unit covers, electrical components, etc., can solve problems such as poor angular stability, achieve the same resonant frequency and solve the effect of poor angular stability

Active Publication Date: 2022-02-08
AIR FORCE UNIV PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a frequency selective surface with adjustable angular response, which effectively solves the problem of poor angular stability of the traditional frequency selective surface

Method used

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  • A Frequency Selective Surface with Adjustable Angle Response
  • A Frequency Selective Surface with Adjustable Angle Response
  • A Frequency Selective Surface with Adjustable Angle Response

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Embodiment 1

[0027] Such as figure 1 and figure 2 As shown, the present invention provides a frequency selective surface with adjustable angle response, including: a first metal structure layer 1, a dielectric substrate layer 2 and a second metal structure layer 3, the first metal structure layer 1 and the second metal structure layer 3 Correspondingly arranged on the front and rear sides of the dielectric substrate layer 2, the first metal structure layer 1 and the second metal structure layer 3 are respectively composed of a plurality of periodic units arranged periodically, and the periodic units of the first metal structure layer 1 It is a well-shaped metal grid 10, and the periodic unit 30 of the second metal structure layer 3 includes: a square metal wire 303 and two feeding metal wires 302, and the two feeding metal wires 302 are arranged in parallel and symmetrically on the square metal wire The upper and lower sides of the two feeder metal wires 302 are respectively connected to...

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Abstract

The invention discloses a frequency selective surface with adjustable angle response, which belongs to the technical field of electromagnetic wave frequency selective surface. It includes: the first metal structure layer and the second metal structure layer are correspondingly arranged on the front and rear sides of the dielectric substrate layer, the period unit of the first metal structure layer is a well-shaped metal grid, and the period of the second metal structure layer The unit includes: a square metal wire and two feeding metal wires. The two feeding metal wires are arranged parallel and symmetrically on the upper and lower sides of the square metal wire. The middle parts of the two feeding metal wires pass through the short metal wire and the The metal wires on the upper and lower sides are connected, the metal wires on the left and right sides of the square metal wire are provided with openings, the varactor diodes are arranged in the openings, and the two sides of the varactor diodes are respectively connected to the metal wires on both sides of the opening. It effectively solves the problem of poor angle stability of the traditional frequency selection surface.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic wave frequency selective surfaces, in particular to a frequency selective surface with adjustable angle response. Background technique [0002] The frequency selective surface is a two-dimensional periodic structure composed of periodically arranged patch units or slot units. It exhibits frequency-selective filtering characteristics for the propagation of electromagnetic waves, that is, the selection characteristics change with frequency. For certain frequency bands The incident electromagnetic waves in the frequency band can all pass through, while the electromagnetic waves in other frequency bands can be completely reflected. Therefore, the frequency selective surface is also called the space electromagnetic filter, which is commonly used in the fields of hybrid radome stealth, electromagnetic compatibility and electromagnetic shielding. [0003] There are certain defects in the traditi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00H01Q1/42H01P1/20
CPCH01Q15/002H01Q15/0026H01Q1/42H01P1/20
Inventor 闫明宝王甲富张介秋屈绍波王军郑麟随赛
Owner AIR FORCE UNIV PLA
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