An Ultra-Miniature Cell-Type Rb Atomic Clock Based on a Novel Waveguide Cavity

【摘要】 We introduce a novel waveguide cavity for ultra-miniature cell-type Rb atomic clock.In the cavity,a coupling ring shaped to be a semi-circle imports an rf signal from electronics,a screw regulator acts as a medium coupler to transmit the microwave signal into the absorption cell,and both the parts serve as a filter to suppress useless components except 6.8 GHz.Furthermore,the waveguide cavity can be used to design a miniature Rb atomic clock,and spread it to a chip-scale atomic clock.We have completed the design of the smallest cell-type Rb atomic clock in the world based on this waveguide cavity.It has not only a small size but also obviously better key performances than those of other miniature Rb atomic clocks.This ultra-miniature cell-type Rb atomic clock aging is 4 ×10^-13/d,which is obviously slower than that of other miniature Rb atomic clocks.更多还原

【Abstract】 We introduce a novel waveguide cavity for ultra-miniature cell-type Rb atomic clock.In the cavity,a coupling ring shaped to be a semi-circle imports an rf signal from electronics,a screw regulator acts as a medium coupler to transmit the microwave signal into the absorption cell,and both the parts serve as a filter to suppress useless components except 6.8 GHz.Furthermore,the waveguide cavity can be used to design a miniature Rb atomic clock,and spread it to a chip-scale atomic clock.We have completed the design of the smallest cell-type Rb atomic clock in the world based on this waveguide cavity.It has not only a small size but also obviously better key performances than those of other miniature Rb atomic clocks.This ultra-miniature cell-type Rb atomic clock aging is 4 ×10^-13/d,which is obviously slower than that of other miniature Rb atomic clocks.更多还原