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Transmission line for artificial localized surface plasmon coupling based on helical metal arms

A localized surface plasmon and metal arm technology, applied in electrical components, waveguides, circuits, etc., can solve the problem that transmission lines can only transmit electrical resonance modes, and achieve strong anti-interference ability, strong application prospects, and strong binding properties. Effect

Active Publication Date: 2021-11-09
HEFEI WISDOM DRAGON MACHINERY DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the transmission structure based on artificial localized surface plasmons mainly includes structures such as units composed of straight metal arms. These structures can only generate electrical resonance modes, so the transmission line formed by them can only transmit electrical resonance modes.

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  • Transmission line for artificial localized surface plasmon coupling based on helical metal arms
  • Transmission line for artificial localized surface plasmon coupling based on helical metal arms
  • Transmission line for artificial localized surface plasmon coupling based on helical metal arms

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Embodiment Construction

[0022] The technical scheme of the present invention will be described in detail below in conjunction with the accompanying drawings

[0023] like figure 1 As shown, the transmission line based on artificial localized surface plasmon coupling of the present invention mainly includes a dielectric substrate 1 and a metal helical copper foil waveguide on the substrate.

[0024] Specifically, a metal sheet 2 is arranged on the dielectric substrate 1, and each metal sheet includes at least several metal helical units; the metal helical unit is composed of several helical metal arms; between adjacent metal helical units connected by a small metal strip 3 .

[0025] In a further implementation, the metal spiral arm may adopt a spiral structure such as a circle, an ellipse, a triangle, a rectangle, or a polygon as required. The adjacent metal helical units may be distributed in a mirror image or an anti-mirror image.

[0026] The invention is based on artificially designed artifici...

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Abstract

The invention relates to an artificial localized surface plasmon coupled transmission line based on a helical metal arm. It includes a dielectric substrate, on which there are periodically connected sub-wavelength metal structural units, and each metal structural unit is composed of two, three or more helical metal arms; the adjacent metal structural units are symmetrical and opposed to each other. Said mode distribution, used for long-distance transmission of artificially localized surface plasmons with high confinement. The invention adopts common PCB technology to manufacture, is convenient to process, has the characteristics of miniaturization, high isolation and high transmission, improves the integration degree of the system, and has good application prospects.

Description

technical field [0001] The invention belongs to the field of artificial electromagnetic materials, and relates to an artificial localized surface plasmon coupling transmission line based on a metal spiral arm structure. Background technique [0002] In the optical band, surface plasmons (Surface Plamson, SPs) refer to the collective oscillation that occurs after the free electrons on the metal surface interact with the incident wave. The surface plasmon is a special electromagnetic surface wave, and its main characteristics are: 1. The field strength of the electromagnetic wave decays exponentially in the vertical direction of the metal / dielectric interface; 2. The energy of the electromagnetic wave is bound near the interface. In the sub-wavelength range; Third, there will be a local field enhancement phenomenon near the interface. According to different propagation characteristics, surface plasmons can be divided into surface plasmon polaritons (SPPs) that propagate on th...

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Application Information

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IPC IPC(8): H01P3/00
CPCH01P3/00
Inventor 廖臻罗国清潘柏操蔡本庚钱雅惠
Owner HEFEI WISDOM DRAGON MACHINERY DESIGN CO LTD