Antenna methane sensor based on bridging structure

A technology of gas sensor and antenna, which is applied in the direction of instruments, scientific instruments, measuring devices, etc., can solve the problems of single frequency band and low sensitivity of antenna sensor, etc., and achieve the effect of strong radiation, high sensitivity and good stability

Pending Publication Date: 2022-05-24
TIANJIN UNIVERSITY OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems such as low sensitivity and single frequency band of the existing antenna sensor, and provide an antenna methane sensor based on a bridge structure

Method used

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  • Antenna methane sensor based on bridging structure
  • Antenna methane sensor based on bridging structure
  • Antenna methane sensor based on bridging structure

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings, and a preferred embodiment of the present invention will be introduced to monitor the concentration of methane gas in a given environment.

[0041] figure 1 Shown is a side view of the antenna sensor of the present invention. The antenna sensor mainly adopts a bridge structure and consists of a radiating metal patch (1), a graphene sensitive film (2), a dielectric substrate (3) and a metal ground plate (4). The graphene sensitive film is the bridge structure circuit closest to the feeding hole. According to the gas sensing characteristics of the graphene sensitive layer, when the surrounding methane gas concentration changes, the conductivity of the graphene sensitive layer will also change, affecting the overall The resonant frequency of the antenna sensor. The th...

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Abstract

The invention discloses an antenna methane sensor based on a bridging structure, and belongs to the technical field of microwave antennas. The antenna sensor comprises a radiation metal patch, a graphene sensitive film, a dielectric substrate and a metal grounding plate. The metal patch and the graphene sensitive film are located on the upper surface of the dielectric substrate, and the metal grounding plate is located on the lower surface of the dielectric substrate; the metal patches comprise a strip rectangular metal patch, a triangular radiation sheet, two U-shaped metal patches and two bridging metal patches; the metal grounding plate is of a mirror image L-shaped structure, and a concave groove is formed in the inner side of a long arm of the metal grounding plate. The graphene sensitive film can absorb combustible gas methane, so that the resonant frequency of the whole antenna is affected, wireless monitoring of methane is achieved, and high application value is achieved.

Description

technical field [0001] The invention belongs to the technical field of microwave antennas, and in particular relates to an antenna methane sensor based on a bridge structure. Background technique [0002] In the fields of energy, pipeline, petroleum and chemical industry, there are inevitably various flammable, explosive, toxic and harmful gases. Once these gases leak, they may cause fire or explosion accidents, causing losses to the life and property of the country and the people. . Therefore, monitoring toxic and harmful gases is of great significance to industrial production, public places and home life. Antenna sensors can not only collect signals, but also transmit signals wirelessly, and have the functions of "sense" and "transmission" at the same time. However, the current conventional antenna sensors have limited bandwidth and low sensitivity, which limit their application in some fields. [0003] In order to overcome the shortcomings of the limited frequency band...

Claims

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Application Information

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IPC IPC(8): G01N27/22
CPCG01N27/221G01N2027/222Y02A50/20
Inventor 轩秀巍王光博周宝增赵婉伊李明吉李红姬李琳孔庆羽
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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