Research on miniaturized frequency steering system based on atomic clock

Abstract In order to generate a high-performance RF signal, by analyzing the traditional frequency steering system, and aiming at the goal of miniaturization and engineering, this paper designs a miniaturized frequency steering system based on dual-atomic clock. In addition, we have carried out research on key technologies such as high-precision frequency deviation measurement and precision frequency regulation. On this basis, a frequency deviation measurement and correction system is designed. And according to the theoretical analysis, the measuring accuracy of the frequency deviation measurement approach can reach 1.0 × 10^-14, besides, the step frequency tuning can also reach 1.125 × 10^-14. What's more, some related experiments, the RF signal synthesized from a Rb clock and a master has an accuracy of 2.26 × 10^-13, and also the frequency stability of 10^4 s in terms of the Allan deviation reaches 2.36 × 10^-14, suggesting that the overall performance of the rubidium atomic clock has been greatly improved.