Radio-frequency source calibration method for jump frequency from direct tracing to high excited state

Abstract

The invention discloses a radio-frequency source frequency calibration method for jump frequency from direct tracing to a high excited state. According to the method, energy level splitting is produced by using the quantum interference effect of high excited atoms under the action of a radio-frequency field and an electric field, and the frequency of the measured radio-frequency field can be effectively traced to the energy level interval of atoms by measuring the characteristic ratio of two split transmitted spectrum peaks. The frequency measuring basis can be directly compared with the jump frequency of atoms, so that the accuracy of frequency measurement is effectively improved. The method can directly trace the frequency of the radio-frequency field to the jump frequency of atoms, a new method is provided for the frequency measurement of the high radio-frequency field, and the method has good measurement accuracy and self-calibration property.

Description

technical field [0001] The invention relates to a space radio frequency field frequency measurement technology, in particular to a radio frequency source calibration method directly traced to the transition frequency between atomic high excited states. Background technique [0002] RF field frequency is an important content of RF field measurement. The current method of measuring radio frequency is to compare the standard frequency with the measured frequency. It mainly includes two kinds of active method and passive method: the active method refers to the oscillation source of a standard frequency included in the measuring instrument. The passive method refers to comparing the frequency of the signal under test with the natural frequency of a tunable passive loop, using the presence of resonance as an indication of frequency equality, such as using an RF field resonant cavity. The commonly used reference frequency that is usually used for comparison is usually several meg...

AI Technical Summary

Problems solved by technology

The commonly used reference frequency that is usually used for comparison is usually several megahertz to tens of megahertz. When the frequency to be tested reaches above 100GHz, the required frequency multiplication or frequency division circuit will become very complicated, and will introduce a large measurement uncertainty

In the passive method, the measurement accuracy also depends on the resonant cavity and the reference frequency of the measuring instrument also needs to be calibrated, which will bring additional costs

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