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Method and device for detecting vortex state of electromagnetic waves using vector network analyzer

A vector network analysis, electromagnetic wave technology, applied in the direction of measuring devices, electromagnetic field characteristics, measuring electrical variables, etc., to achieve the effect of easy operation, simple principle and low cost

Active Publication Date: 2019-04-09
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In the literature at home and abroad, there is currently no technology related to the microwave section to determine whether the electromagnetic wave generated by a certain transmitting antenna to be tested is a vortex electromagnetic wave and to detect the modal number and positive or negative of the vortex electromagnetic wave.

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  • Method and device for detecting vortex state of electromagnetic waves using vector network analyzer
  • Method and device for detecting vortex state of electromagnetic waves using vector network analyzer
  • Method and device for detecting vortex state of electromagnetic waves using vector network analyzer

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Embodiment Construction

[0035] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0036] An embodiment of the present invention provides a method for detecting a vortex state of an electromagnetic wave by using a vector network analyzer, which uses a phase gradient cyclic addition method to determine whether the electromagnetic wave generated by the transmitting antenna to be tested is a vortex electromagnetic wave.

[0037] The following first figure 1 As an example, the method for detecting the vortex state of an electromagnetic wave by using a vector network analyzer provided in an embodiment of the present invention will be described.

[0038] The method for detecting the vortex state of electromagnetic waves using a vector network analyzer provided in this embodiment is implemented in a device for detecting the vortex state of electromagnetic waves. The device includes a probe receiving antenna...

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Abstract

The invention relates to a method and a device for detecting an electromagnetic wave vortex state by using a vector network analyzer. The method comprises steps that a vortex electromagnetic wave detection field is established; an electromagnetic beam is emitted by a to-be-detected emission antenna; the electromagnetic beam is collected at N set positions by a probe receiving antenna; the electromagnetic beam emitted by the to-be-detected emission antenna is received by a first port of the vector network analyzer, the electromagnetic beams collected at the N set positions by the probe receiving antenna are sequentially received by a second port, the phase of each point of the N set positions is outputted according to the received electromagnetic beams, and the point phases are sent to theprocessor; data processing of the received N phase values is carried out by the processor, and the form of the electromagnetic beams emitted by the to-be-detected emission antenna is verified.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and a device for detecting the vortex state of electromagnetic waves by using a vector network analyzer. Background technique [0002] The vortex electromagnetic wave is an electromagnetic wave with a special wavefront structure. It is named for the vortex shape of the equiphase surface. It has a broad application background in the fields of communication and radar detection. [0003] The vortex electromagnetic wave first originated in 1992 when the Dutch physicist L. Allen discovered that the Laguerre-Gaussian laser beam carried orbital angular momentum. However, the research in the microwave frequency band is relatively late. In recent years, vortex electromagnetic waves carrying orbital angular momentum, as a new technology, can greatly broaden the bandwidth of wireless communication, effectively solve the problem of lack of wireless communication spectrum, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/08
CPCG01R29/0871
Inventor 弓树宏张兴民魏姣郭立新
Owner XIDIAN UNIV
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