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Cavity bubble system of rubidium atom frequency standard

A technology of rubidium atomic frequency scale and cavity bubble, which is applied in the field of high-performance rubidium atomic frequency scale to achieve the effect of simple and effective adjustment of resonant frequency and reducing the volume of microwave cavity

Active Publication Date: 2012-11-07
武汉中科坤德科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although its cavity Q and field shape distribution are worse than those of TE011 cavity, it is sufficient to meet the comprehensive index requirements of passive rubidium atomic frequency standard miniaturization

Method used

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  • Cavity bubble system of rubidium atom frequency standard
  • Cavity bubble system of rubidium atom frequency standard
  • Cavity bubble system of rubidium atom frequency standard

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Embodiment 1

[0024] A rubidium atomic frequency standard cavity bubble system, which includes a heating power tube 1, a heating cylinder body 2, a microwave cavity body 3, a C field coil 4, an insulating snap ring 5, a dielectric cylinder 6, an integrated filter absorption bubble 7, and a microwave circuit plate 8, photocell 9, step diode 10 and coupling ring 11. It is characterized in that: the microwave cavity 3 is made of iron-nickel alloy or μ metal with high magnetic permeability, the microwave field type adopts TE111 mode, the coupling mode is magnetic coupling, and the direction of the microwave magnetic field is perpendicular to the coupling ring. In the entire integrated bubble, most of the microwave magnetic fields are directed along the direction of the quantization axis. The heating cylinder 2 has an outer square inner circle structure, and one end of the heating cylinder (2) is a fully closed end (only the RF cable, optical inspection line and C field coil outlet are left), th...

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Abstract

The invention discloses a cavity bubble system of the rubidium atom frequency standard. Integrated filtering absorption bubbles are fixed in a medium tube through heat conduction silicone grease and are arranged on one side of a microwave cavity, the direction of a microwave magnetic field is perpendicular to a coupling ring, one end of a heating tube is a full closed end, a heating power tube is fixed on the heating tube through a screw, a C field coil is wound around the medium tube, and two ends of the C field tube are fixed through insulation clamping rings. the integrated filtering absorption bubbles, the C field coil, the insulation clamping rings are placed in the microwave cavity, a microwave circuit plate covers one open end of the microwave cavity and is placed in the heating tube with the microwave cavity, one end of the coupling ring is connected with a phase step diode, and the other end of the coupling ring is connected with an external radio frequency signal wire. The phase step diode is welded on a microwave circuit board, a photoelectric cell is bonded to the microwave circuit board, and the heating power tube is fixed on the microwave cavity through a screw. The cavity bubble system is simple in structure, small in size, simple in cavity frequency micro-adjustment, high in performance index and easy to process.

Description

technical field [0001] The invention relates to an atomic frequency standard applied in the fields of communication, navigation and positioning, measurement and the like, and more specifically relates to a cavity bubble system of a rubidium atomic frequency standard, which is especially suitable for a high-performance rubidium atomic frequency standard. Background technique [0002] With the rapid development of science and technology, atomic frequency standards have been widely used in various scientific research fields such as communication, navigation, and punctuality. The rubidium atomic frequency standard is widely used in electric power, telecommunications, measurement calibration, and radar equipment to provide high-precision time and frequency references due to its low power consumption, small size, and low price; especially in modern military mobile communications, portable , the rubidium atomic frequency standard against harsh environments has an irreplaceable role...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03L7/26
Inventor 余钫秦蕾陈智勇汤超高伟金鑫李超管妮娜盛荣武
Owner 武汉中科坤德科技有限公司
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