Device and method for measuring polarization direction of radio frequency electric field

A technology of electric field polarization direction and measurement device, applied in electrostatic field measurement and other directions, can solve problems such as large measurement error, and achieve the effect of overcoming large error, easy miniaturization, and suitable for wide promotion

Active Publication Date: 2017-05-24
SHANXI UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem of large measurement error existing in the existing radio frequency electric field polarization direction measuring device and method, and provide a kind of radio frequency electric field polarization direction measuring device and method

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  • Device and method for measuring polarization direction of radio frequency electric field
  • Device and method for measuring polarization direction of radio frequency electric field
  • Device and method for measuring polarization direction of radio frequency electric field

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] like figure 1 As shown, a measuring device for the polarization direction of a radio frequency electric field in this embodiment includes a sample cell 1, a first laser light source 2, a second laser light source 3, a high reflectivity reflector 4, a dichroic mirror 5, and a photodetector 6. The first half-wave plate 7, the first polarization beam splitter prism 8, the second half-wave plate 9 and the second polarization beam splitter prism 10; the first laser light source 2 is a detection light source, and the detection light wavelength is 852nm, which is highly reflective The ratio reflector 4 is located on the probe light optical path, the first half-wave plate 7, the first polarizing beam splitting prism 8, the sample cell 1, the second polarizing beam splitting prism 10, the second half-wave plate 9, the dichroic mirror 5 and the photoelectr...

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Abstract

The invention relates to a device and method for measuring the polarization direction of a radio frequency electric field. The objective of the invention lies in solving a technical problem that a conventional radio frequency electric field polarization direction measurement device and method have a big measurement error. The technical scheme of the invention is that the device comprises a sample pool, a first laser light source, a second laser light source, a high-reflectivity reflector, a dichroic mirror, a photoelectric detector, a first half-wave plate, a first polarization splitting prism, a second half-wave plate and a second polarization splitting prism; the method achieves the measurement of the polarization direction of the radio frequency electric field through the induction of the radio-frequency decoration Rydberg atom electromagnetic induced transparency effect spectrum lines to the polarization direction of the electric field. The method carries out the measurement based on atom parameters, irons out the defect that a conventional electric field polarization direction measurement method is big in error, is very simple in implementation, and facilitates the implementation of miniaturization.

Description

technical field [0001] The invention relates to a measuring device and method for the polarization direction of a radio frequency electric field. Background technique [0002] The measurement of the polarization direction of the radio frequency electric field is of great significance in the fields of precision measurement and military technology. The existing device and method for measuring the polarization direction of the radio frequency electric field is to use a standard antenna to calculate the polarization direction of the radio frequency electric field by measuring the received radio frequency power as the angle of the receiving antenna changes. Carry out a good calibration on the antenna, and the error of the calibration antenna is very large; secondly, for the radio frequency field below GHz, the required antenna size is too large, and the antenna itself will radiate the radio frequency field, which will interfere with the field under test, so the measurement The a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/12
CPCG01R29/12
Inventor 赵建明焦月春贾锁堂
Owner SHANXI UNIV
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