Loop-Gap Resonator Coupling for Compact Atomic Clock Cavities
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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 connected to a central cavity via capacitive gaps, where electromagnetic energy is coupled into satellite cavities and then efficiently transferred into the central cavity through near-field radiation, allowing for a compact and low-power electromagnetic energy source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional electromagnetic energy coupling methods are used in atomic clocks, then the electromagnetic field can be provided in the central cavity, but the device size and electrical power consumption increase
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 couple electromagnetic energy into the central cavity, creating a compact nested configuration that reduces overall device size while maintaining field stability.
Solution Approach 2:
The loop-gap resonators serve as intermediary elements between the external electromagnetic energy source and the central cavity. These resonators efficiently transfer energy through capacitive coupling via gaps, acting as mediators that enable effective energy transfer with minimal power loss and reduced device dimensions.
2Volume of moving object
If traditional electromagnetic energy coupling methods are used in atomic clocks, then the electromagnetic field can be provided in the central cavity, but the device size increases
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 couple electromagnetic energy into the central cavity, creating a compact nested configuration that reduces overall device size while maintaining field stability.
Solution Approach 2:
The patent optimizes geometric parameters of the loop-gap resonators and capacitive gaps to enhance electromagnetic coupling efficiency. By carefully adjusting the size, shape, and positioning of the resonators and gaps, the system achieves effective energy transfer in a compact volume while preserving the stability of the electromagnetic field in the central cavity.
3Productivity
If loop-gap resonators with capacitive gaps are used to couple electromagnetic energy, then energy coupling efficiency improves and device size decreases, but the complexity of the resonator structure increases
Solution Approach 1:
The patent divides the resonator system into distinct modular components: central cavity, satellite cavities, loop-gap resonators, and capacitive gaps. Each segment performs a specific function and can be independently designed and optimized, which simplifies the overall design process despite the increased system complexity, while achieving high energy coupling efficiency.
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 enhances the accuracy of atomic sensors by maintaining a uniform amplitude and phase of the electromagnetic field, enabling smaller and more energy-efficient atomic clocks.
Implementation Method 1
electromagnetic energy is coupled into satellite cavities and then efficiently transferred into the central cavity through near-field radiation
Implementation Method 2
two or more peripheral cavities coupled to the central cavity via capacitive gaps
Data Source
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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.