Loop-Gap Resonator Coupling for Compact Low-Power Atomic Clocks
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Solution Overview
Problem
Existing atomic clocks require larger sizes and higher electrical power consumption due to inefficient coupling of electromagnetic energy into central cavities, which hinders their miniaturization and energy efficiency.
Innovation Solution
The use of loop-gap resonators and capacitive gaps in an electrically conductive ring to efficiently couple radio frequency electromagnetic energy from an external source into a central cavity, utilizing loop-gap resonators to electromagnetically couple energy through near-field radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional electromagnetic coupling methods are used, then atomic clock functionality is achieved, but device size and power consumption are excessive
Solution Approach 1:
The patent implements a nested cavity structure where satellite cavities are positioned within or around the central cavity, forming a hierarchical arrangement. The satellite cavities contain loop-gap resonators that are coupled to the central cavity through capacitive gaps, creating a compact nested configuration that reduces overall device volume while maintaining coupling efficiency.
Solution Approach 2:
The patent introduces loop-gap resonators as intermediary elements between the external electromagnetic energy source and the central cavity. These resonators act as mediators that efficiently transfer electromagnetic energy through near-field coupling, improving energy transfer efficiency and reducing the power requirements of the atomic clock system.
2Use of energy by stationary object
If traditional electromagnetic coupling methods are used, then atomic clock functionality is achieved, but power consumption is excessive
Solution Approach 1:
The loop-gap resonators serve as intermediary structures that enhance electromagnetic energy transfer from the external source to the central cavity. By using these resonant structures, the system achieves more efficient energy coupling, reducing the overall electrical power consumption required to maintain the atomic clock's operation.
Solution Approach 2:
The patent utilizes resonant frequency matching between the loop-gap resonators and the central cavity to optimize energy transfer. By tuning the resonant parameters of the loop-gap structures and capacitive gaps, the system maximizes electromagnetic coupling efficiency, thereby reducing power consumption.
3Use of energy by stationary object
If loop-gap resonators are used to improve energy coupling, then power consumption is reduced, but device complexity increases
Solution Approach 1:
The patent divides the resonator system into modular components: central cavity, multiple satellite cavities, loop-gap resonators, and capacitive gaps. This segmentation allows for independent optimization of each component and simplifies manufacturing and assembly, reducing the practical complexity despite the enhanced functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for a more compact and lower power consumption atomic clock design with a substantially uniform electromagnetic field, enhancing atomic sensor accuracy by ensuring phase coherence among atoms within the central cavity.
Implementation Method 1
utilizing loop-gap resonators to electromagnetically couple energy through near-field radiation
Implementation Method 2
two or more peripheral cavities coupled to the central cavity via capacitive gaps
Data Source
AI summary
Techniques are provided for efficiently coupling radio frequency spectrum electromagnetic energy into a central cavity of a resonator also including one or more loop-gap resonator. The electromagnetic energy is first coupled into each loop-gap resonator. A portion of each electromagnetic energy is coupled from each loop-gap resonator into the central cavity.