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Compact broadband slow wave system based on double curved-groove metal grating structures

A metal grating, slow-wave system technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve the problems of reduced lateral size, increased lateral size, unfavorable device miniaturization and integration, etc., to achieve low propagation loss, Strong binding effect

Active Publication Date: 2015-08-19
上海辰琨文化科技中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The proposed broadband slow-wave system based on the graded metal groove structure still has the following disadvantages: the lateral size of the broadband slow-wave system with the graded metal groove structure will increase with the increase of the groove length, which is not conducive to the miniaturization of the device and integration, the present invention proposes a compact broadband slow-wave system based on double curved groove metal grating structure, the lateral size of the system is reduced by more than 40% compared with the conventional broadband slow-wave system

Method used

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  • Compact broadband slow wave system based on double curved-groove metal grating structures
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  • Compact broadband slow wave system based on double curved-groove metal grating structures

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Embodiment 1

[0014] see figure 1 and figure 2 , the compact broadband slow-wave system based on the double curved groove metal grating structure includes a dielectric plate 16 and a double curved groove metal grating structure 1 on the dielectric plate 16, and the double curved groove metal grating structure 1 is etched from the inside Composed of two metal grating structures with curved grooves, the thickness of the metal grating structure is very small. The double curved groove metal grating structure in the present invention is composed of one or two or more short rectangular grooves. The curved grooves The total length of these short rectangular grooves is the sum of the lengths of these short rectangular grooves. Compared with the conventional metal grating structure, in the case of the same total groove length, this grating structure has lower propagation loss while maintaining the same electromagnetic wave confinement ability and The smaller size has significant advantages. Based...

Embodiment 2

[0016] This embodiment is basically the same as Embodiment 1, and the special features are as follows: the shape of the metal grating structure 1 with double curved grooves in the metal grating structure is: the total length of a long horizontal straight groove and a plurality of vertical equidistant distributions Part of the gradually changing longitudinal short straight grooves and part of the curved grooves are vertically intersected. The microstrip line 4 on the back of the dielectric plate and perpendicular to the front groove line 5 is used as an excitation to excite the pseudo surface plasmons in the double curved groove metal grating structure 1 on the dielectric plate 16 . Among them, the first circular structure 2 and the second circular structure 3 at one end of the microstrip line and the groove line are used to couple more electromagnetic waves to the metal grating structure with double curved grooves. The microstrip line 4 is located on the back of the dielectric ...

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Abstract

The invention provides a compact broadband slow wave system based on double curved-groove metal grating structures. The compact broadband slow wave system based on the double curved-groove metal grating structures includes a medium plate and the double curved-groove metal grating structures located on the medium plate, the double curved-groove metal grating structures consist of two metal grating structures from whose inner sides curved groove are etched, and are formed by one segment or combination of two segments or a plurality of segments of short rectangular grooves, and the total length of the curved groove is a sum of the lengths of the short rectangular grooves. The compact broadband slow wave system provided by the invention can reduce the overall size or volume.

Description

technical field [0001] The invention relates to a compact broadband slow-wave system based on a metal grating structure with double curved grooves. The compact broadband slow-wave system can realize functions such as communication, data storage or signal delay in microwave, millimeter or terahertz bands. Background technique [0002] Surface plasmons are electromagnetic waves bound to the surface of metals and media, and are not limited by the optical diffraction limit. Therefore, they can be used to construct compact and miniaturized components, and have important applications in surface or interface technology and data storage. Surface plasmons have been formed study. The artificial electromagnetic structure formed by periodically arranging microstructure units (whose characteristic size is much smaller than the wavelength) can support similar surface wave mode propagation, and can more conveniently manipulate the propagation of electromagnetic waves, thereby realizing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P9/00
Inventor 周永金杨保佳
Owner 上海辰琨文化科技中心