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A bandwidth-controllable millimeter-wave filter based on plasmons

A plasma and filter technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve the problem of unmentioned passband frequency, achieve controllable passband frequency, stable and constant stopband, and easy to plane element The effect of device and circuit integration

Active Publication Date: 2022-04-15
NANTONG UNIVERSITY +1
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  • Claims
  • Application Information

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Problems solved by technology

In the existing millimeter wave filter, the control of the passband frequency is not mentioned

Method used

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  • A bandwidth-controllable millimeter-wave filter based on plasmons
  • A bandwidth-controllable millimeter-wave filter based on plasmons
  • A bandwidth-controllable millimeter-wave filter based on plasmons

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Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with the accompanying drawings for further explanation, so that those skilled in the art can understand the present invention more deeply and can implement it, but the following examples are only used to explain the present invention, not as the present invention limit.

[0035] Such as figure 1 , a bandwidth-controllable millimeter-wave filter based on plasmons, including a first dielectric substrate 1 and a second dielectric substrate 2 stacked from bottom to top, the first dielectric substrate 1 is set as a SIW transmission line, and the SIW transmission line The surface is provided with a first rectangular area, and the metal etching in the first rectangular area is periodically arranged in a grid; the second dielectric substrate 2 is set as a SIW cavity, and the lower surface of the SIW cavity is provided with a second rectangular area, and the second rectangular area The metal is removed, the ...

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Abstract

The invention belongs to the technical field of microwave communication, and in particular relates to a bandwidth-controllable millimeter-wave filter based on plasmons. It includes a first dielectric substrate and a second dielectric substrate stacked from bottom to top, the first dielectric substrate is set as a SIW transmission line, the surface of the SIW transmission line is provided with a first rectangular area, and the metal etching in the first rectangular area is periodic Arrange the grid; the second dielectric substrate is set as a SIW cavity, the lower surface of the SIW cavity is provided with a second rectangular area, the metal in the second rectangular area is removed, the area of ​​the first rectangular area is the same as the area of ​​the second rectangular area and the SIW The cavity and the SIW transmission line are aligned and stacked in a rectangular area; the SIW transmission line, the periodically arranged grid and the SIW cavity form an artificial plasmon transmission structure, which can support the transmission of artificial plasmon surface waves and form a filter passband and stopband. The invention can realize controllable passband frequency and stable stopband, and simultaneously provide low insertion loss.

Description

technical field [0001] The invention belongs to the technical field of microwave communication, and in particular relates to a bandwidth-controllable millimeter-wave filter based on plasmons. Background technique [0002] Wireless communication in the millimeter wave band has attracted more and more attention because it can provide a higher data transmission rate (1-10Gb / s). As a key component of millimeter-wave systems, filters are widely used, and there is an urgent demand for millimeter-wave filters that are small in size, low in cost, easy to integrate, and high in performance. [0003] At present, the microstrip filter is a commonly used form of designing filters. However, due to the open structure of the microstrip, in the millimeter wave band, the transmission line of the microstrip shows a large transmission loss. As in the patent CN104241743A, the millimeter-wave filter based on the microstrip line exhibits an in-band insertion loss of 2.5dB. Using a transmission...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/207H01P1/203
CPCH01P1/207H01P1/203
Inventor 张雪锋曹帅华陈建新杨汶汶唐慧秦伟陆清源
Owner NANTONG UNIVERSITY
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