High-Frequency Amplifier Band Switching via Grounded Termination
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Solution Overview
Problem
High frequency amplifiers require manual switching of terminations to change frequency bands, leading to user discomfort and potential low-quality amplification if not performed correctly.
Innovation Solution
A high frequency amplifier with electronically activatable switch devices connected to ground, enabling automated reconfiguration of the termination to adjust frequency bands, reducing the need for manual intervention and ensuring reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual switching of termination is used to change frequency bands, then device complexity is reduced, but ease of operation deteriorates and reliability worsens due to user error
Solution Approach 1:
The system automatically detects the desired frequency band and switches the termination without user intervention. The control device monitors the operating state and autonomously reconfigures the termination to match the required frequency band, eliminating manual operation while maintaining simplicity.
Solution Approach 2:
The manual mechanical switching of termination is replaced by an electronic control system that automatically detects frequency band requirements and switches the termination electronically, improving ease of operation without significantly increasing perceived device complexity.
2Reliability
If manual switching of termination is used to change frequency bands, then device complexity is reduced, but reliability deteriorates due to potential user error in reconfiguration
Solution Approach 1:
The control device continuously monitors the operating state of the high frequency amplifier and the frequency band requirements, providing feedback to automatically adjust the termination. This closed-loop control ensures the termination is always correctly configured for the current operating conditions, eliminating user error.
Solution Approach 2:
The system self-regulates by automatically detecting when a frequency band change is needed and performing the termination switch independently, removing the reliability issues associated with manual operation while keeping the device architecture relatively simple.
3Reliability
If automated control procedures are implemented for frequency band switching, then ease of operation improves and reliability increases, but device complexity increases
Solution Approach 1:
Manual mechanical switching is replaced with electronic automation through a control device that monitors operating state and automatically switches termination. This substitution improves reliability and ease of operation while the electronic control architecture manages the complexity increase.
Solution Approach 2:
The control device performs multiple functions: monitoring operating state, detecting frequency band requirements, and switching termination. This multi-functionality consolidates complexity into a single integrated component rather than adding separate systems for each function.
Data Source
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AI summary
The present disclosure generally relates to a high frequency amplifier, a system and a method for setting an operating state of a high frequency amplifier. The high frequency amplifier comprises at least a first amplification circuit with a first frequency range, at least one second amplification circuit with a second frequency range, a hybrid coupler circuit with an isolated port, and a termination with at least one switch device. The hybrid coupler circuit is connected to output sides of the first amplification circuit and the second amplification circuit. The termination is connected with the isolated port. The high frequency amplifier has an operating range based on the first amplification circuit and the second amplification circuit. The high frequency amplifier has a load modulation in dependence of the first amplification circuit and the second amplification circuit. A first contact of the at least one switch device is directly coupled to ground.