Circulator Phase Stabilization for Cooling-Free High-Frequency Sources
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Solution Overview
Problem
Conventional cooling systems for high-frequency sources in linear accelerator systems require significant installation space and electrical power, making them challenging to operate, especially on mobile platforms, and result in reduced beam performance due to temperature fluctuations affecting the circulator's ferrites.
Innovation Solution
A high-frequency source with an electrical phase stabilization element that actively adjusts the magnetic field of the circulator's ferrites using a control unit to maximize the amplitude difference between generated and backscattered microwaves, reducing the need for cooling power and installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a conventional cooling system is used to stabilize the circulator temperature, then the temperature stability is improved, but the installation space and electrical power consumption increase significantly
Solution Approach 1:
The patent replaces the mechanical cooling system with an electrical phase stabilization element that directly adjusts the phase of microwaves passing through the circulator. This electrical system monitors the phase of backscattered microwaves and compensates for temperature-induced phase shifts in real-time, eliminating the need for bulky cooling infrastructure while maintaining temperature stability effects.
Solution Approach 2:
The patent changes the operational parameter from passive temperature control to active phase adjustment. By continuously monitoring and adjusting the microwave phase through the electrical phase stabilization element based on backscattered signal feedback, the system compensates for temperature variations without requiring physical temperature stabilization through cooling systems.
2Temperature
If a conventional cooling system is used to stabilize the circulator temperature, then the temperature stability is improved, but the electrical power consumption increases
Solution Approach 1:
The patent replaces the energy-intensive mechanical cooling system with a low-power electrical phase adjustment system. The electrical phase stabilization element consumes minimal power to sense and correct phase shifts, whereas conventional cooling systems require substantial electrical power to operate compressors, fans, and refrigeration cycles.
Solution Approach 2:
The system performs self-correction by using the backscattered microwaves themselves as the sensing signal. The electrical phase stabilization element monitors the phase of these backscattered waves and automatically adjusts to compensate for temperature-induced phase drift, eliminating the need for external cooling power.
3Area of stationary object
If cooling power is reduced to save space and power, then the installation space and power consumption are reduced, but temperature fluctuations affect the circulator performance
Solution Approach 1:
The patent implements a feedback mechanism where the phase of backscattered microwaves is continuously monitored and used to control the electrical phase stabilization element. This closed-loop system detects temperature-induced phase shifts and automatically compensates, maintaining reliable circulator isolation performance without requiring extensive cooling infrastructure.
Solution Approach 2:
The patent substitutes the unreliable passive thermal management (reduced cooling) with an active electrical phase compensation system that maintains isolation performance through real-time phase adjustment, ensuring reliability without the space requirements of conventional cooling systems.
4Area of stationary object
If the circulator operates without adequate cooling, then the installation space is reduced, but the amplitude difference between generated and backscattered micrawaves decreases
Solution Approach 1:
The patent replaces mechanical cooling with an electrical phase stabilization system that actively manages the microwave phase. By monitoring and adjusting the phase of micrawaves passing through the circulator based on backscattered signal feedback, the system maintains optimal amplitude difference and isolation performance without requiring cooling space.
Solution Approach 2:
The patent changes from passive thermal management to active phase parameter control. By continuously adjusting the microwave phase through the electrical phase stabilization element, the system maintains the optimal amplitude difference between forward and backward waves, preventing performance degradation that would occur with inadequate cooling.
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 solution allows for a larger operating temperature range and reduced power consumption, enabling efficient operation without a dedicated cooling system, thus minimizing space requirements and maintaining optimal performance.
Implementation Method 1
circulator which has ferrites for isolating the microwave generator against backscattered micrawaves by influencing the phase of the micrawaves as a function of a magnetic field
Implementation Method 2
circulator which has ferrites
Implementation Method 3
electrical phase stabilization element that actively adjusts the magnetic field of the circulator's ferrites
Data Source
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AI summary
The invention relates to a high-frequency source for a linear accelerator system, the linear accelerator system, a method for operating a high-frequency source and an associated computer program product.The high-frequency source according to the invention for a linear accelerator system comprises: a microwave generator for generating microwaves, a control unit, and a circulator, which has ferrites for isolating the microwave generator against backscattered microwaves by influencing the phase of the microwaves as a function of a magnetic field, characterized in that the circulator has an electrical phase stabilization element, wherein the control unit is configured for receiving a measured quantity describing a magnetic permeability of the circulator and for adjusting a current and/or voltage of the electrical phase stabilization element to influence the magnetic field as a function of the received measured quantity, such that the amplitude difference between the generated microwaves and the backscattered microwaves is maximized.