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A microwaveband microwave absorbing device and method based on a phase-adjustable supersurface

A microwave segment and metasurface technology, applied in the direction of electrical components, antennas, etc., can solve the problems of microwave absorption frequency band and performance cannot be changed, poor flexibility and practicability, and achieve high practical value, easy maintenance, and simple design.

Active Publication Date: 2019-01-11
余姚市万邦电机有限公司 +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the absorbing frequency band and performance of this microwave absorbing device cannot be changed after the design is completed, and the flexibility and practicability are poor. New microwave absorbing devices are needed to solve the above problems

Method used

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  • A microwaveband microwave absorbing device and method based on a phase-adjustable supersurface
  • A microwaveband microwave absorbing device and method based on a phase-adjustable supersurface
  • A microwaveband microwave absorbing device and method based on a phase-adjustable supersurface

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Embodiment Construction

[0025] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0026] The invention provides a microwave absorbing device realized by phase-adjustable metasurface. This wave-absorbing device is composed of metasurface structural units, and the electromagnetic state can be changed by applying a bias voltage to the subwavelength unit, so that the independent phase of the unit structure can be adjusted, and the incident field can be arbitrarily changed on the metasurface. Reflective phase has the...

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Abstract

The invention provides a microband microwave absorbing device and a method based on a phase-adjustable supersurface, comprising at least one unit structure. The unit structure comprises a metal structure, a dielectric substrate, a first via, a second via, a ground substrate, a varactor diode, a first via, a second via penetrating the dielectric substrate and the ground substrate, and one end of the first via hole is connected to the metal structure, and the varactor diode is connected between symmetrical metal structures of the metal structure. The control unit adjusts the phase response distribution of the cell structure by providing a reverse bias voltage to the cell structure and adjusting the varactor diode. By applying the bias voltage to the sub-wavelength cell to change the electromagnetic state, the independent phase of the super-surface cell structure can be adjusted, and then the reflected phase of the incident field in the super-surface cell structure can be arbitrarily changed, which has the characteristics of simple design, easy processing, flexible application and so on.

Description

technical field [0001] The invention relates to the field of microwave electromagnetics, in particular to a microwave absorbing device and method based on a phase-tunable metasurface. Background technique [0002] Absorbing materials refer to a class of materials that can effectively absorb incident electromagnetic waves and make them scatter and attenuate. It converts incident electromagnetic waves into heat energy or other energy forms through various loss mechanisms of materials to achieve the purpose of absorbing electromagnetic waves. The high-speed trend of new technology is leading the trend of high-frequency and miniaturization of all kinds of electrical and electronic equipment in the world. High-frequency electromagnetic interference technology will become more prominent, and wave-absorbing materials will inevitably have more and more applications. space. [0003] Metamaterials in the present invention is an emerging research field of artificial electromagnetic ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q17/00
CPCH01Q17/00H01Q17/007H01Q17/008
Inventor 郭丽君郑斌陈红胜王璐璐王万军
Owner 余姚市万邦电机有限公司
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