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Terahertz dual-band elimination filter

A filter and dual-band technology, applied in the field of terahertz communication, can solve the problems of large loss, difficult process and poor practicability of the terahertz dual-band filter, achieving simple and mature technology, wide application range and low loss Effect

Active Publication Date: 2020-10-13
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention aims to solve the problems of large loss, complex structure, high cost, difficult process and poor practicability existing in the current terahertz dual-frequency filter

Method used

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0030] The present invention provides a terahertz dual-frequency band-rejection filter. The terahertz dual-frequency band-rejection filter includes N×N identical square units, and N is an integer greater than or equal to 2. In this embodiment, N is taken as 4, such as figure 2 As shown, the units are arranged on a plane perpendicular to the incident direction of the wave; there is no gap between the units, such as image 3 As shown, each unit includes a metal resonant layer and a substrate; the metal resonant layer 2 is connected to the substrate 1 .

[0031] Such as Figure 4 As shown, the metal resonant layer includes: a metal circle 4, a metal ring 5, a first metal strip 6, a second metal strip 7, a first half metal ring 8, a second half metal ring 9, the metal circle 4, ...

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Abstract

The invention discloses a terahertz dual-band elimination filter. The terahertz dual-frequency band elimination filter comprises N * N identical square units which are periodically arranged on a planeperpendicular to a wave incident direction, and no interval exists between the units; each unit comprises a metal resonance layer and a substrate; and each metal resonance layer comprises a first semi-metal ring, a second semi-metal ring, a metal ring, a first metal strip, a second metal strip and a metal circle; the metal circle is arranged in the center of the metal ring, the first metal stripand the second metal strip are respectively arranged right above and right below the metal ring, the first semi-metal ring and the second semi-metal ring are respectively arranged right above and right below the first metal strip and the second metal strip, and the first semi-metal ring and the second semi-metal ring form a circular ring with two gaps. The dual-stop-band characteristic of the filter in the terahertz wave band is achieved, and the filter has the advantages of being low in loss, simple in structure and low in material and process cost.

Description

technical field [0001] The invention relates to the technical field of terahertz communication, in particular to a terahertz dual-band rejection filter. Background technique [0002] With the development of communication technology, the existing spectrum resources are increasingly tight, and the communication band is gradually moving to high frequency. Terahertz is a band between microwave and visible light, and terahertz communication has the advantages of both microwave communication and laser communication. At present, terahertz communication has been widely used in the fields of large-capacity short-range military confidential communication and indoor ultra-high-speed communication. [0003] The development of terahertz communication systems is closely related to the development of its components such as antennas, modulators, and filters. Among them, the filter is a frequency selection device, which can perform frequency selection on the incident wave to obtain the req...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/20
CPCH01P1/20
Inventor 阮久福姬生伟王亮张娜兰凤
Owner HEFEI UNIV OF TECH
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