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Two-dimensional distribution measurement method of microwave field based on Rydberg quantum coherence effect

A quantum coherent, two-dimensional distribution technology, applied in the direction of measuring devices, measuring electrical variables, electromagnetic field characteristics, etc., can solve the problems of limited device size and low spatial resolution, and achieve the effect of large frequency bandwidth

Inactive Publication Date: 2018-12-07
SHANXI UNIV
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Problems solved by technology

In terms of microwave field distribution measurement, the traditional method is to use the thermal effect of microwaves to invert the field strength distribution of microwaves. This method requires the use of devices with thermoacoustic effects as sensors, and the measurement has delay, and is limited to device size and spatial resolution. not tall

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  • Two-dimensional distribution measurement method of microwave field based on Rydberg quantum coherence effect
  • Two-dimensional distribution measurement method of microwave field based on Rydberg quantum coherence effect
  • Two-dimensional distribution measurement method of microwave field based on Rydberg quantum coherence effect

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Embodiment Construction

[0020] A method for measuring two-dimensional distribution of microwave field based on the Rydberg quantum coherence effect, using an atomic steam pool induction array; the atomic steam pool induction array includes a plurality of prismatic atomic steam pool units of the same size, each The projection of the prismatic atomic steam pool unit on the horizontal plane is an isosceles right-angled triangle. Multiple prismatic atomic steam pool units are arranged in sequence according to the rule that the vertical angles of the right angles are alternately reversed. The adjacent prismatic atomic steam pool units are adjacent to each other The sides are close to each other; the hypotenuses of multiple prismatic atomic steam pools facing the same right angle are located on the same plane, and together constitute two parallel sides of the atomic steam pool induction array; the entire atomic steam pool induction array The projection on the horizontal plane is trapezoidal or parallelogram...

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Abstract

The invention discloses a microwave field two-dimensional distribution measurement method based on a Rydberg quantum coherent effect. The basic physics principle which the method relies on is that a typical electromagnetic induction transparence (EIT) peak of Rydberg quanta is split under the effect of a microwave field, and intensity information of a microwave field electric field component can be obtained from a split interval of a split peak. A single atom steam pool is expanded, a 1*50 linear array is formed, and two-dimensional space distribution of microwave field intensity is obtained by scanning the position of the array through a motion control module. The measurement principle of the method is based on the transition frequency and transition intensity of atoms, and therefore, the method has high robustness and accuracy.

Description

technical field [0001] The invention relates to a field strength measurement technology for microwave field propagation in space, in particular to a two-dimensional distribution measurement method of microwave field based on Rydberg quantum coherence effect. Background technique [0002] Microwaves play an important role in people's daily life and military science and technology, such as satellite communication, radar detection and so on. The field intensity measurement and its spatial distribution of microwave field is an important part of microwave measurement. The field strength measurement of the traditional microwave field is to use a field strength meter or a spectrum analyzer based on a dipole antenna or a microwave horn. In this method, the microwave signal is received by the dipole antenna and converted into the input voltage of the field strength meter for detection. Since the traditional field strength measurement method is based on the antenna, it has a large er...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/08
CPCG01R29/0885
Inventor 张好张临杰赵建明肖连团
Owner SHANXI UNIV
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