An active reconfigurable frequency selective surface for X and S bands

A frequency-selective surface and band technology, applied to antennas, electrical components, etc., can solve problems such as low efficiency, small resonant frequency movement, and diodes cannot be controlled individually, and achieve the effect of wide practicability and good tuning performance

Active Publication Date: 2022-01-14
CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing AFSS has problems such as the shift of the resonance frequency is too small, the diode cannot be controlled individually, and the efficiency is not high.

Method used

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  • An active reconfigurable frequency selective surface for X and S bands
  • An active reconfigurable frequency selective surface for X and S bands
  • An active reconfigurable frequency selective surface for X and S bands

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Embodiment Construction

[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0035] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying draw...

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Abstract

The invention relates to the field of electromagnetic field microwaves, and relates to an active reconfigurable frequency selective surface in X and S bands. It includes three layers of metal surfaces, and a layer of dielectric substrate is arranged between every two layers of metal surfaces; a plurality of periodic metal units are engraved on the first metal surface; Corresponding; the third metal surface is the bias circuit layer; the first dielectric substrate and the second dielectric substrate are provided with metallized through holes for connecting the conduction diode; the second metal surface is used as the floor and the isolation layer to isolate the metal effects between surfaces, and to isolate and match metallized vias. The invention independently regulates the working condition of each unit through an external bias circuit, so that each unit absorbs electromagnetic waves in the X-band when the diode is turned on, and absorbs the electromagnetic wave in the S-band when the diode is cut off. At the same time, the introduction of bias circuit makes the frequency selective surface have better tuning performance and wider practicability.

Description

technical field [0001] The invention relates to the field of electromagnetic field microwave technology, in particular to an active reconfigurable frequency selective surface of X and S bands. Background technique [0002] Frequency Selective Surface (FSS) is a structure composed of many periodically arranged units, which can be used to control different electromagnetic waves. Through the directional control of electromagnetic waves through specific structures, we have designed spatial filters, absorbers, large-scale planar reflective arrays and electromagnetic lenses. At present, a single fixed frequency-selective surface structure can no longer meet the needs of multi-standard and multi-functional mobile systems, so reconfigurable and codeable metasurfaces have entered our field of vision. [0003] A diode-based active frequency selective surface (Active Frequency Selective Surface, AFSS) can change the resonant state of the unit by changing the state of the diode. Howev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/002
Inventor 毕丹宏丁帅朱家梁
Owner CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD
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