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Lightning broadband magnetic field signal detection antenna system

A magnetic field signal and detection antenna technology, which is applied in the field of antenna systems, can solve the problems of weak high-frequency signals, low positioning accuracy, and a small number of positioning radiation sources, and achieve the effect of increasing the magnification and ensuring stability

Pending Publication Date: 2021-11-26
南京气象科技创新研究院
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Problems solved by technology

[0005] The purpose of this application is to provide a lightning broadband magnetic field signal detection antenna system for the problem of low positioning accuracy or a small number of positioning radiation sources caused by weak high-frequency signals during lightning broadband signal measurement

Method used

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  • Lightning broadband magnetic field signal detection antenna system
  • Lightning broadband magnetic field signal detection antenna system
  • Lightning broadband magnetic field signal detection antenna system

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Embodiment Construction

[0036] Attached below Figure 2-7 The application is described in further detail.

[0037] refer to figure 2 and image 3, this embodiment discloses a lightning broadband magnetic field signal detection antenna system, including a magnetic antenna and an amplifying circuit connected to the magnetic antenna; the magnetic antenna includes an antenna frame, and the antenna frame includes a first ring frame 1 and a second ring frame 2, the second A ring frame 1 and a second ring frame 2 are circular frames, and the first ring frame 1 and the second ring frame 2 take the center line of the plane as the axis to cross and vertically intersect, so that the first ring frame 1 and the second ring frame Two annular frames 2 form a spherical frame.

[0038] The first ring frame 1 and the second ring frame 2 are also connected by a support connecting frame 3, and the first ring frame 1 and the second ring frame 2 are produced by 3D printing of ABS engineering plastics. In the specific...

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Abstract

The invention discloses a lightning broadband magnetic field signal detection antenna system which comprises a magnetic antenna and an amplifying circuit connected with the magnetic antenna. The magnetic antenna comprises two magnetic rings which are vertically distributed in a crossed mode, and the magnetic rings are arranged in a crossed mode with the center line of the plane where the magnetic rings are located as the axis. According to the invention, the cut-off frequency of the high-frequency end in the frequency band is controlled by using the unique magnetic field change rate (dB / dt) measurement characteristic of the magnetic ring antenna, and the whole frequency band is always kept in the dB / dt gain characteristic through the amplification circuit, so that the signal of the high-frequency end can obtain the gain exceeding 20dB, measurement of the high-frequency pulse signal is effectively ensured, a low-frequency positioning system can obtain more high-frequency radiation source positioning information, and the low-frequency positioning system can be applied to more scenes.

Description

technical field [0001] The invention relates to an antenna system, in particular to a lightning broadband magnetic field signal detection antenna system. Background technique [0002] The lightning signal has an extremely wide radiation frequency band, but it has extremely strong energy in the low frequency band (generally 30 kHz - 100 kHz), which can propagate thousands of kilometers on the earth's surface, thus making the low frequency signal a good choice for long-distance measurement and monitoring of lightning. One of the most widely used frequency bands for positioning applications. Recently, with the development of technology, low-frequency electromagnetic signals have gradually been applied to the construction of local three-dimensional lightning location network. The system sets up more than 5 electromagnetic measurement stations working in the low-frequency band (30 kHz-300kHz) and synchronized in time, and uses the time difference positioning algorithm to obtain ...

Claims

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Application Information

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IPC IPC(8): G01R29/08H01Q1/36
Inventor 吕凡超秦子龙陆高鹏
Owner 南京气象科技创新研究院
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