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Artificial surface plasmon polariton and microstrip line conversion structure and method

A plasma and artificial surface technology, applied in the field of plasma, can solve the problems of large size, increase the difficulty of processing, difficult to achieve effects, etc., and achieve the effects of low processing difficulty, miniaturization and compact structure

Active Publication Date: 2022-06-24
BEIJING UNIV OF POSTS & TELECOMM +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this conversion structure needs to add an additional metal strip structure along the groove direction, which is not conducive to processing and integrating other devices in this direction, and the size of the period is at least larger than 1 SSPPs
In addition, the conversion structure is applied in the microwave frequency band. If it is applied in the millimeter wave and terahertz frequency bands, the distance between the metal strip and the microstrip line needs to be very close, which will increase the difficulty of processing.
[0005] The existing artificial surface plasmon and microstrip line conversion structure is large in size and not compact enough, and the application technology in the millimeter wave and terahertz frequency bands is relatively difficult, and it is difficult to achieve good results

Method used

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  • Artificial surface plasmon polariton and microstrip line conversion structure and method

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Embodiment Construction

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but not to limit the present invention.

[0033] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and the related structures and / or processing steps are omitted. Other details not relevant to the invention.

[0034] It should be emphasized that the term "comprising / comprising" when used herein refers to the presence of a feature, element, step or component, but does not exclude the presence or addition of one or more other feat...

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Abstract

The invention provides an artificial surface plasmon polariton and microstrip line conversion structure and method, the conversion structure comprises a metal patch and a transition microstrip line, the metal patch is a step-shaped structure with gradually increased width, and the width of the metal patch is the size of the metal patch perpendicular to the electromagnetic wave propagation direction; the side, with the smaller width, of the metal patch is connected with the microstrip line, and the side, with the larger width, of the metal patch is connected with the transition microstrip line. One side of the transition microstrip line is connected with the metal patch, and the other side of the transition microstrip line is connected with the artificial surface plasmon polaritons. Mode matching and conversion between the microstrip line and SSPPs can be achieved, no extra metal patch needs to be introduced, integration between different devices is facilitated, the machining difficulty is low, the structure is compact, the size is small, and miniaturization of the devices can be achieved. When the antenna is applied to millimeter wave and terahertz frequency bands, the loss is small and the processing difficulty is low.

Description

technical field [0001] The invention relates to the technical field of surface plasmons, in particular to a conversion structure and method of artificial surface plasmon polaritons and microstrip lines. Background technique [0002] When light is incident on the metal surface, the light wave will be coupled with the free electrons on the metal surface, resulting in an electromagnetic wave propagating along the interface between the metal and the medium, which is called surface plasmon polaritons (SPPs). ). Artificial surface plasmon polaritons (SSPPs) are analogs of SPPs in the low frequency band (30-150KHz), which unify the electromagnetic wave mode in the terahertz band with the SPPs in the optical band. Compared with SPPs, the advantage of SSPPs is that its dispersive properties and the ability to confine electromagnetic fields are determined by the geometrical parameters of the structure, and its structure usually has multiple adjustable geometrical variables, so that i...

Claims

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Application Information

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IPC IPC(8): H01P5/08H01P3/18
CPCH01P5/08H01P3/18
Inventor 姚远刘子豪邓建钦程潇鹤俞俊生杨耀辉
Owner BEIJING UNIV OF POSTS & TELECOMM
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