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Metamaterial focusing antenna for measuring spatial-temporal evolution of streamer electron density

An electron density, focusing antenna technology, applied in the direction of antenna, circuit, plasma, etc., can solve the problem that the spatial distribution position cannot be measured, etc.

Active Publication Date: 2021-04-09
ANHUI UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0004] The purpose of the present invention is to provide a metamaterial focusing antenna for measuring the temporal and spatial evolution of streamer electron density, so as to solve the problem that the spatial distribution position cannot be measured in the above-mentioned background technology

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  • Metamaterial focusing antenna for measuring spatial-temporal evolution of streamer electron density
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  • Metamaterial focusing antenna for measuring spatial-temporal evolution of streamer electron density

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] see Figure 1-3 , the present invention provides a technical solution: a metamaterial focusing antenna for measuring the time-space evolution of streamer electron density, including a planar dielectric lens array 1, a metamaterial metal unit 2, a focusing lens 3, a dielectric punching unit 4 and a horn antenna, and a planar dielectric The lens array 1, the metamaterial metal unit 2, the focusing lens 3 and the dielectric perforation unit 4 are located on the...

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Abstract

The invention discloses a metamaterial focusing antenna for measuring spatio-temporal evolution of streamer electron density, which belongs to the technical field of metamaterial focusing antennas; the antenna comprises a planar dielectric lens array, a metamaterial metal unit, a focusing lens, a dielectric punching unit and a horn antenna. The horn antenna outputs a microwave scattering signal; the planar dielectric lens array converts signals into plane waves and outputs the plane waves, the plane waves are focused into a single wave beam through the metamaterial metal unit and the focusing lens between the planar dielectric lens array and the focusing antenna, so that high gain and high space synthesis efficiency of the transmitting array antenna are achieved. According to the invention, the planar dielectric lens is uniformly provided with air through holes, thereby achieving the phase compensation of electromagnetic waves transmitted by the circularly polarized horn antenna, and achieving a purpose of improving the gain and directionality of the circularly polarized horn antenna. The metamaterial metal unit is added between the planar dielectric lens and the focusing lens to converge to form a single wave beam, so that high gain and high space synthesis efficiency of the antenna are realized.

Description

technical field [0001] The invention relates to the technical field of metamaterial focusing antennas, in particular to a metamaterial focusing antenna for measuring the temporal and spatial evolution of streamer electron density. Background technique [0002] Diagnosis of plasma characteristics is a method to determine plasma characteristics by using physical laws and phenomena, and electron density is one of the most basic and important parameters of plasma. Different diagnostic methods are selected according to the measurement requirements and experimental conditions. The commonly used methods for plasma electron density include spectroscopy, probe method and microwave method, etc. Spectroscopy is a non-contact diagnostic method. Conduct research and diagnose plasma properties. Emission spectroscopy will not disturb the plasma, and can be used to measure plasma parameters and their distribution characteristics, and has high spatial resolution, but it is more suitable for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q19/08H01Q15/00H01Q15/02H01Q13/02H05H1/00
CPCH01Q19/08H01Q15/0086H01Q15/02H01Q13/02H05H1/0062Y02A90/30
Inventor 陈兆权张明吴金芳张煌张三阳
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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