Signal Coupling Protection Using Power Detection and Attenuation
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Solution Overview
Problem
Existing signal coupling devices face challenges in maintaining operational reliability due to the risk of applying undesirably high signal powers to their components, which can lead to damage.
Innovation Solution
A signal coupling apparatus with a transmission activity detection device that generates a protection signal when signal properties deviate from predetermined thresholds, controlling an attenuation device to prevent excessive signal transmission and ensuring reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If signal coupling apparatus transmits signals between terminal and antenna, then signal connection is established, but components may be exposed to undesirably high signal powers causing damage
Solution Approach 1:
The transmission activity detection device monitors signal properties before they can cause damage to components. By detecting transmission activity and signal power levels in advance, the system can take protective action (attenuating the signal) before excessive power reaches vulnerable components, thus preventing damage while maintaining normal operation
Solution Approach 2:
The attenuation device serves as an intermediary element between the signal path and the components. It selectively reduces signal power levels when transmission activity is detected, acting as a protective buffer that prevents excessive power from reaching components while allowing normal signal transmission to proceed when conditions are safe
2Reliability
If transmission activity detection device monitors signal properties continuously, then protection function is rapidly initiated, but device complexity increases
Solution Approach 1:
The transmission activity detection device automatically monitors signal properties and autonomously determines when protection functions should be initiated. The system self-regulates by comparing detected signal properties against predetermined thresholds and automatically controlling the attenuation device without requiring complex external control systems, thus achieving rapid protection response with minimal added complexity
Data Source
AI summary
A signal coupling apparatus for transmitting transmission signals between a terminal and an antenna includes a terminal-side interface, at least one attenuation device and at least one connection signal arm for connecting the terminal-side interface with the attenuation device. At least a first transmission activity detection device is coupled with the connection signal arm for signaling purposes. The first transmission activity detection device is capable of generating a protection signal for controlling the attenuation device if a transmission power of a transmission signal is greater than a predetermined power. There is also described a method for operating such a signal coupling apparatus.