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X-waveband and S-waveband active reconfigurable frequency selective surface

A frequency-selective surface and band technology, applied in electrical components, antennas, etc., to solve problems such as low efficiency, inability of diodes to be individually controllable, and small amount of resonant frequency shift.

Active Publication Date: 2021-01-01
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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  • X-waveband and S-waveband active reconfigurable frequency selective surface
  • X-waveband and S-waveband active reconfigurable frequency selective surface

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Embodiment Construction

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

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

[0035]Therefore, the following detailed description of the embodiments of the present invention provided i...

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Abstract

The invention relates to the field of electromagnetic field microwaves, in particular to an X-waveband and S-waveband active reconfigurable frequency selective surface. The antenna comprises three layers of metal surfaces, wherein a layer of dielectric substrate is arranged between every two layers of metal surfaces; a plurality of periodic metal units are carved on the first metal surface; the diode on the third metal surface corresponds to the position of each periodic metal unit; the third metal surface layer is a bias circuit layer; metalized through holes are formed in the first dielectric substrate and the second dielectric substrate and are used for connecting and conducting diodes; and the second metal surface serves as a floor and an isolation layer and is used for isolating the influence between the metal surfaces and isolating and matching the metallized through holes. According to the invention, the working condition of each unit is independently regulated and controlled through the additional bias circuit, so each unit absorbs electromagnetic waves of an X waveband when the diode is conducted and absorbs electromagnetic waves of an S waveband when the diode is cut off.Meanwhile, due to the introduction of the biasing circuit, the frequency selective surface has better tuning performance and wider practicability.

Description

Technical field[0001]The invention relates to the technical field of electromagnetic field microwaves, in particular to an active reconfigurable frequency selective surface in the X and S bands.Background technique[0002]Frequency selective surface (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 a specific structure, we have designed spatial filters, wave absorbers, large-scale planar reflection 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. Therefore, a metasurface with reconfigurability and codeability has entered our field of vision.[0003]The diode-based Active Frequency Selective Surface (AFSS) can change the resonance state of the unit by changing the state of the diode. H...

Claims

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Application Information

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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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