A Solid Electromagnetic Vacuum Material Based on Electric Resonant Unit
A technology of electric resonance and basic unit, which is applied in the direction of electrical components, radiating unit covers, antennas, etc., can solve the problems such as the influence of the antenna, and achieve the effect of convenient processing, simple structure and good matching effect
Active Publication Date: 2020-10-16
ZHEJIANG UNIV
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[0029] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.
[0030] Such as figure 1 As shown, the present invention includes a plurality of basic units, each basic unit includes a dielectric 1 and a metal structure 2, the metal structure 2 is embedded in the center of the dielectric 1, the metal structure 2 includes a metal unit 3 and a connecting column 4, and the middle of the metal unit 3 There is a through hole penetrating up and down, the connecting column 4 is located on the central axis of the through hole of the metal unit 3, there is a gap between the connecting column 4 and the through hole of the metal unit 3, and the gap is filled with a dielectric 1; the side length a of the basic unit is Sub-wavelength, preferably less than 1 / 4 of the working wavelength; multiple basic units are arranged in different arrangements in three-dimensional space to form discrete or solid structures of different...
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Abstract
The invention discloses a solid electromagnetic vacuum material based on an electrical resonance unit. The solid electromagnetic vacuum material comprises a plurality of basic units comprising dielectrics and metal structures which are inlaid in the center positions of the dielectrics, each metal structure comprises one metal unit and one connection post which is located at the central axis of thethrough hole of the metal unit, a gap is arranged between each connection post and the through hole of each metal unit, and is filled with the dielectrics; and the basic units are arranged in different arrangement modes in the three-dimensional space to form discrete or solid structures of different shapes. The solid electromagnetic vacuum material can be processed to structures with arbitrary shapes for different applications, the example simulation verifies that at the working frequency, the equivalent dielectric constant and magnetic permeability of the solid 'electromagnetic vacuum' material are equal to these of a corresponding free space; and moreover, each frequency band of RF, terahertz and even lightwave can be extended through structure size zooming, and therefore, the solid electromagnetic vacuum material can be widely applied to related application fields such as electromagnetic vacuum materials.
Description
technical field [0001] The invention belongs to the field of electromagnetic transparency research, in particular to a solid electromagnetic vacuum material based on an electric resonance unit. Background technique [0002] In nature, because of the existence of reflection and refraction, observers can observe existing objects from various angles. The electromagnetic properties of the transmission medium determine the propagation, focusing, and scattering of electromagnetic waves, and the electromagnetic properties of the medium are usually described by two electromagnetic parameters, the dielectric constant and the magnetic permeability. And almost all solids and liquids have a different permittivity and / or magnetic permeability than free space, so when these objects are placed in free space, electromagnetic waves will be reflected and refracted no matter from which angle they are incident. Therefore, if there is a solid or liquid medium whose permittivity and permeability...
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IPC IPC(8): H01Q15/10H01Q1/42
Inventor 李冉朱忠博叶德信冉立新
Owner ZHEJIANG UNIV