A Continuously Adjustable Frequency Selective Surface Structure

A technology of surface selection and frequency modulation, applied in circuits, waveguide devices, electrical components, etc., it can solve the problems of poor overall performance, large size, and poor protection of frequency selection surfaces, and achieve high relative protection performance and out-of-band steepness. High, the effect of improving the overall performance

Active Publication Date: 2021-07-27
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

However, the current frequency selective surface has the disadvantages of poor protection, large size, and non-tunability, resulting in poor overall performance of the frequency selective surface

Method used

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  • A Continuously Adjustable Frequency Selective Surface Structure
  • A Continuously Adjustable Frequency Selective Surface Structure
  • A Continuously Adjustable Frequency Selective Surface Structure

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Embodiment Construction

[0019] 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.

[0020] In the description of the present invention, "plurality" means two or more, unless otherwise clearly defined in this embodiment.

[0021] see figure 1 , the present invention provides a continuously adjustable frequency selective surface structure, the continuously adjustable frequency selective surface structure includes a hexagonal complementary split resonant ring assembly 1, a first dielectric substrate 2, a second dielectric substrate 3, a third dielectric substrate 4. The fourth dielectric substrate 5, the first liq...

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Abstract

The invention discloses a continuously adjustable frequency selective surface structure, which uses a multi-layer hexagonal complementary opening resonant ring combined with a multi-screen cascading technology to realize high relative protection performance of the frequency selective surface, and its square coefficient is approximately 1, out-of-band High steepness; using the coupling technology of inductive surface and capacitive surface, the multi-layer frequency selective surface is designed to realize the overall miniaturization of the frequency selective surface; through the use of multi-layer liquid crystal layer joint tuning technology, the bias is applied to the liquid crystal material The voltage realizes the tunable function of the frequency selective surface and improves the overall performance of the frequency selective surface.

Description

technical field [0001] The invention relates to the technical field of filters, in particular to a continuously adjustable frequency selection surface structure. Background technique [0002] Frequency Selective Surface (FSS) is an infinite planar structure composed of the same patch or aperture unit arranged on a dielectric substrate in a two-dimensional periodic manner. has selectivity. It is because of the spatial filtering characteristics of the frequency selective surface that it is widely used in military and wireless communication systems. In military terms, frequency selective surfaces can be used as strong scattering structures of ships or aircrafts for stealth. With the advancement of science and technology, the form of modern warfare has moved from the original "physical battlefield" to the "electromagnetic battlefield". Therefore, countries have accelerated the pace of research on radar stealth technology for electromagnetic waves. [0003] In modern warfare ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/20
CPCH01P1/20H01P1/2002
Inventor 蒋迪冉普航朱凯白天明
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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