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Jump layer transmission line based on artificial surface plasma polaritons

A plasma and artificial surface technology, applied in the field of jump layer transmission line, can solve the problem that free electron oscillation cannot be generated at the interface between metal and medium, and the surface plasmon mode cannot be directly excited, so as to achieve the effect of reducing crosstalk.

Active Publication Date: 2016-06-01
SOUTHEAST UNIV
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Problems solved by technology

[0003] However, due to the perfect electric wall characteristics of metals in low frequency bands, such as microwave and terahertz bands, free electron oscillations will not be generated at the interface between the metal and the medium, so the surface plasmon mode will not be directly excited.

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  • Jump layer transmission line based on artificial surface plasma polaritons
  • Jump layer transmission line based on artificial surface plasma polaritons
  • Jump layer transmission line based on artificial surface plasma polaritons

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Embodiment Construction

[0016] In order to solve the above problems, the applicant has carried out in-depth research: when electromagnetic waves are irradiated on the periodically arranged through-holes, their theoretical dispersion characteristics are the same as those of high-frequency plasma materials. Judging from its dispersion characteristic curve, as the frequency increases, the characteristic curve of the surface plasmon mode is located on the right side of the optical axis and gradually moves away from the optical axis. This means that the wavenumber of surface waves will gradually be much larger than that of free space electromagnetic waves. According to Maxwell's equation calculation, when the surface wave wavenumber is greater than the free space wavenumber, the surface wave will decay exponentially along the normal direction of the interface.

[0017] Therefore, as the frequency increases, the confinement of the artificial surface plasmon mode surface waves will gradually increase. At t...

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Abstract

The invention discloses a jump layer transmission line based on artificial surface plasma polaritons. The jump layer transmission line comprises a dielectric substrate, a first metal strip and a second metal strip which are arranged at the two sides of the dielectric substrate, and a metalized through hole which penetrates through the dielectric substrate and is connected with the tail ends of the first metal strip and the second metal strip so as to connect the metal strips from one side of the dielectric substrate to the other side. The first metal strip and the second metal strip are formed by periodic slot units. Interlayer high-efficiency transmission of multiple layers in broadband bandwidth can be realized through a metal through hole technology, and the jump layer transmission line also has the characteristics of being easy to manufacture and convenient to process, and low in crosstalk and high in efficiency. The single-layer transmission line structure can be applied to a limitless thin dielectric substrate so that the characteristics of ultrathin ultralow loss transmission can be realized. Meanwhile, the two transmission lines are not sensitive to deformation of the dielectric substrate and can be attached to a spherical surface, a conical surface and other uneven dielectric substrate surfaces so as to form a conformal device and a circuit system.

Description

technical field [0001] The invention belongs to the field of plasma materials and waveguide materials, in particular to a layer-hopping transmission line based on artificial surface plasmons. Background technique [0002] In recent years, with the development of new artificial electromagnetic materials (Metamaterials), artificial surface plasmon (SurfacePlasmaPolaritons, SPP) effect has been developed rapidly. Surface plasmon is a surface wave mode with high confinement characteristics generated at the interface between metal and medium in the optical band or near-infrared band. Since the metal no longer exhibits perfect electric wall characteristics (Perfect Electric Conductor, PEC) at high frequencies, there will be certain free electrons at the interface between the metal and the medium. According to Maxwell's equations and its boundary conditions, it can be obtained that the excited plasma mode electromagnetic wave propagates uniformly along the direction of the interfa...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P3/02H01P3/08H01P3/18
CPCH01P3/023H01P3/088H01P3/18
Inventor 崔铁军潘柏操陶醉
Owner SOUTHEAST UNIV
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