Coaxial Resonator Shock Resistance
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Solution Overview
Problem
Crystal oscillator-based resonator devices are expensive, time-consuming to manufacture, fragile, and not ideal for applications that endure launch stresses due to their physical characteristics and fragility.
Innovation Solution
A coaxial resonator device coupled to a chip-and-wire circuit and hermetically sealed within a housing using conductive epoxy, providing a cost-effective, shock-resistant solution suitable for high-stress environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a crystal oscillator is used to produce high frequency low noise signal, then the signal quality is improved, but the device becomes fragile and expensive to manufacture
Solution Approach 1:
The patent replaces the traditional crystal oscillator with a coaxial resonator that copies the essential function of generating high frequency low noise signals. The coaxial resonator uses a different physical implementation (coaxial structure with adjustable length) to achieve the same signal quality without the fragility of crystal oscillators
Solution Approach 2:
The patent changes the operating parameters by using a coaxial resonator where the resonant frequency is determined by the physical length of the coaxial structure. By adjusting the length parameter, the device achieves the desired high frequency signal while being mechanically robust and less fragile than crystal oscillators
2Measurement precision
If a crystal is custom grown and etched to match operating frequency, then the signal frequency precision is improved, but the manufacturing time and cost increase
Solution Approach 1:
The coaxial resonator is pre-manufactured with a standard structure, and the frequency is tuned by simply adjusting the length during assembly. This preliminary preparation eliminates the time-consuming custom growth and etching processes required for crystal oscillators while maintaining frequency precision
Solution Approach 2:
Instead of custom-growing crystals for each frequency, the patent uses a standardized coaxial resonator structure where frequency is controlled by the length parameter. This allows rapid manufacturing by simply cutting or adjusting the length to the required specification, dramatically reducing manufacturing time while maintaining precision
3Speed
If a crystal oscillator is used, then high frequency signal generation is achieved, but the manufacturing cost increases
Solution Approach 1:
The patent copies the signal generation function using a coaxial resonator instead of a crystal oscillator. The coaxial structure uses common materials and standard manufacturing techniques, making it much cheaper to produce while maintaining the ability to generate high frequency signals
Solution Approach 2:
The coaxial resonator uses inexpensive materials such as coaxial cable sections that can be readily obtained and assembled. This replaces expensive custom-grown crystals with cheaper, off-the-shelf components, significantly reducing manufacturing cost while maintaining high frequency performance
4Speed
If crystal oscillators are used in systems subject to launch stresses, then signal generation is achieved, but the device reliability under stress decreases
Solution Approach 1:
The patent replaces the fragile crystal oscillator with a coaxial resonator that copies the signal generation function. The coaxial structure is mechanically robust and can withstand launch stresses and shocks that would damage traditional crystal oscillators, ensuring reliability in harsh environments
Solution Approach 2:
The coaxial resonator can be constructed using robust composite materials and structures that are resistant to shock and vibration. This composite approach ensures the device survives launch stresses while maintaining high frequency signal generation capability
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
The coaxial resonator device offers ultra-low noise performance across a broad frequency range, is more durable, and can be manufactured faster and cheaper than crystal oscillator-based devices, making it suitable for space environments and systems that require long-term reliability.
Implementation Method 1
A resonator is coupled to the housing or substrate using a conductive epoxy
Implementation Method 2
hermetically sealed within a housing
Data Source
AI summary
A coaxial resonator device includes a substrate including a chip-and-wire circuit. A resonator is coupled to the substrate using a conductive epoxy. A system includes a resonator device. The resonator device includes a housing having one or more connectors, a resonator coupled to the housing a conductive epoxy, and a chip-and-wire circuit connecting the resonator to the one or more connectors.