HPM-VT RF Cavity with Integrated Non-Evaporable Getters
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Solution Overview
Problem
Traditional high-power microwave vacuum tube devices require large vacuum support equipment and maintenance due to the need for separate vacuum pumps, which complicates operational use and shelf life management.
Innovation Solution
Integration of non-evaporable getter (NEG) modules within the RF cavity enclosure of the high-power microwave vacuum tube device, utilizing additive manufacturing to create vents for gas permeation and absorption, eliminating the need for traditional vacuum pumps and reducing maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional vacuum pumps are used to maintain vacuum conditions, then vacuum support is achieved, but device complexity and maintenance requirements increase
Solution Approach 1:
The patent integrates the vacuum maintenance function directly into the RF cavity enclosure by incorporating NEG modules within the enclosure structure itself. This merges the vacuum support function with the RF cavity structure, eliminating the need for separate vacuum pump systems and reducing overall device complexity while maintaining reliable vacuum conditions.
Solution Approach 2:
The NEG modules provide autonomous vacuum maintenance by chemically absorbing residual gas molecules within the sealed RF cavity enclosure. This self-service mechanism eliminates the need for external vacuum pumps and continuous operational intervention, reducing maintenance requirements while ensuring reliable vacuum preservation throughout the device's operational life.
2Reliability
If separate vacuum pumps are used, then vacuum evacuation is achieved, but ease of operation deteriorates due to operational complexity
Solution Approach 1:
By integrating NEG modules directly within the RF cavity enclosure structure, the patent combines vacuum maintenance with the primary device structure. This eliminates the need for separate vacuum pump systems and their associated operational complexities, making the device easier to operate while maintaining reliable vacuum conditions through the autonomous NEG modules.
Solution Approach 2:
The NEG modules autonomously maintain vacuum conditions by chemically binding residual gas molecules within the sealed enclosure. This self-service capability eliminates the need for operational intervention with external vacuum pumps, significantly improving ease of operation while ensuring consistent vacuum conditions throughout the device's operational life.
3Reliability
If traditional vacuum support equipment is used, then vacuum evacuation is achieved, but loss of time increases due to maintenance requirements
Solution Approach 1:
The NEG modules provide continuous, autonomous vacuum maintenance by chemically absorbing residual gas molecules within the sealed RF cavity enclosure. This self-service mechanism eliminates the need for periodic maintenance intervention and operational downtime associated with traditional vacuum pump systems, significantly reducing time loss while maintaining reliable vacuum conditions throughout the device's operational life.
Solution Approach 2:
The NEG modules are pre-installed within the RF cavity enclosure during manufacturing, providing immediate vacuum maintenance capability from the start of operation. This preliminary action eliminates the need for subsequent maintenance interventions and vacuum pump operations, reducing cumulative maintenance time while ensuring continuous reliable vacuum conditions.
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 integration of NEG modules maintains vacuum conditions within the device, reducing the need for extensive maintenance and vacuum support equipment, enhancing operational efficiency and shelf life with minimal upkeep.
Implementation Method 1
non-evaporable getter (NEG) modules installed in the internal hollow sub-cavity
Implementation Method 2
NEG material that has been heated to a temperature sufficient to activate the NEG material and enable the NEG material to absorb a gas within the sealed RF cavity enclosure
Implementation Method 3
Vents are formed in at least one side wall of said each interior structure for permeation of a gas into the internal hollow sub-cavity
Implementation Method 4
Resonating cavities exist between adjacent interior structures to produce a resonating frequency response
Data Source
AI summary
A device comprising an RF cavity enclosure including a tubular section having a plurality of interior structures radially or axially arranged which forms an unobstructed inner hollow center within the tubular section. Each interior structure of the plurality of interior structures includes side walls between which is formed an internal hollow sub-cavity. Resonating cavities exist between adjacent interior structures to produce a resonating frequency response. Vents are formed in at least one side wall for permeation of a gas into the internal hollow sub-cavity. A high-power microwave system and method of manufacture are provided.