Bi-Directional Amplifier With Common Signal Detection for Lower PCB Complexity
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Solution Overview
Problem
Traditional bi-directional signal boosters require separate amplification paths for uplink and downlink signals, increasing component count and complexity, whereas a common amplification path for both signals can reduce components and size, but lacks a unified detection method for signal power levels.
Innovation Solution
A bi-directional signal booster with a common amplification path that applies gain to both uplink and downlink signals, using a common signal detector to detect power levels of both signals, reducing the number of components and improving signal quality by filtering noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate amplification paths are used for uplink and downlink signals, then signal quality can be independently optimized, but the number of components and device complexity increase
Solution Approach 1:
The patent combines separate amplification paths into a single common amplification path that processes both uplink and downlink signals. This merging reduces the number of amplifiers and associated components while maintaining signal quality through a unified detection and control mechanism that monitors both signal directions.
Solution Approach 2:
The common signal detector serves multiple functions by detecting power levels of both uplink and downlink signals simultaneously. This universal detector replaces what would traditionally require separate detectors, reducing component count while enabling independent optimization of both signal paths through centralized control.
2Device complexity
If a common amplification path is used for both uplink and downlink signals, then the number of components and PCB size are reduced, but a unified detection method is required to maintain signal quality
Solution Approach 1:
The common signal detector is designed to perform multiple detection functions for both uplink and downlink signals within a single device. This universal detector measures power levels in both directions and provides control signals to the amplifier, eliminating the need for separate detection systems while maintaining the ability to independently optimize each signal path.
Solution Approach 2:
The system implements a feedback mechanism where the common signal detector continuously monitors power levels of both uplink and downlink signals and adjusts amplifier gain accordingly. This feedback control enables the common amplification path to maintain signal quality by dynamically adapting to changing signal conditions in both directions.
Data Source
AI summary
A system of detecting signal power may include a first interface port configured to receive a first signal. The system may also include a second interface port communicatively coupled to the first interface port and configured to receive a second signal. The second interface port may be communicatively coupled to the first interface port such that the first signal propagates from the first interface port to the second interface port and such that the second signal propagates from the second interface port to the first interface port. The system may further include a common signal detector communicatively coupled between the first interface port and the second interface port such that the common signal detector is configured to receive both the first and second signals and is configured to detect a first power level of the first signal and a second power level of the second signal.