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Miniaturized frequency selective surface structure with rectangular coefficient close to 1

A technology of frequency selective surface and rectangular coefficient, which is applied in the field of filters, can solve the problems of non-tunable, large frequency selective surface, etc.

Inactive Publication Date: 2020-10-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a miniaturized frequency selective surface structure with a square coefficient close to 1, aiming to solve the problem that the traditional frequency selective surface has the defects of large volume and non-tunable

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  • Miniaturized frequency selective surface structure with rectangular coefficient close to 1
  • Miniaturized frequency selective surface structure with rectangular coefficient close to 1
  • Miniaturized frequency selective surface structure with rectangular coefficient close to 1

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Embodiment Construction

[0015] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0016] In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element...

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Abstract

The invention discloses a miniaturized frequency selective surface structure with a rectangular coefficient close to 1. The antenna comprises dielectric substrates, a liquid crystal layer and a resonance unit, wherein the number of the dielectric substrates is two. The two dielectric substrates are oppositely arranged; the liquid crystal layer is positioned between the two dielectric substrates; the liquid crystal layer is filled with liquid crystal, each resonance unit is located on each dielectric substrate, each resonance unit comprises a fractal metal patch, a fractal metal ring and a high-resistance wire; the fractal metal patches are located in the fractal metal rings, and the high-resistance wires are connected with the fractal metal patches and the fractal metal rings. The fractalmetal patch and the fractal metal ring are connected by using the high-resistance wire, so the high-steepness frequency selective surface design is realized, and the rectangular coefficient is close to 1; the parting technology and the loading technology are combined for use, so the miniaturization design of the frequency selective surface is realized; and the tunable function of the frequency selective surface is realized by loading a dielectric constant electric control adjustable liquid crystal material.

Description

technical field [0001] The invention relates to the technical field of filters, in particular to a miniaturized frequency selective surface structure with a rectangular coefficient close to 1. Background technique [0002] Frequency Selective Surface (FSS) is an infinite planar structure composed of the same patch or aperture unit arranged in two-dimensional periodicity. It has frequency selection for electromagnetic waves with different operating frequencies, polarization states and incident angles. characteristic. It can be used as a spatial filter, interacting with electromagnetic waves and exhibiting the properties of a bandpass or bandstop filter. It is widely used in electromagnetic stealth, electromagnetic compatibility, military communication and electronic countermeasures. At present, research on stealth technology has become a hot spot. Conventional stealth measures cannot effectively reduce the radar cross section directly in front of the aircraft while ensuring...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/0013H01Q15/002
Inventor 蒋迪赵羽冉普航
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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