Combined Duplexer with Shared Amplification Path
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Solution Overview
Problem
Traditional signal boosters require separate amplification paths for uplink and downlink signals, leading to increased component count, size, power consumption, and heat dissipation, as well as higher costs and noise floors.
Innovation Solution
A bi-directional signal booster with a common amplification path that uses shared amplifiers for both uplink and downlink signals, reducing the number of components and incorporating combined duplexers to filter and direct signals efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate amplification paths are used for uplink and downlink signals, then signal quality can be maintained, but component count, size, power consumption, and heat dissipation increase
Solution Approach 1:
The patent combines separate amplification paths into a single shared amplification path that handles both uplink and downlink signals. The duplexer directs uplink signals to the amplifier for amplification, and directs amplified downlink signals from the amplifier to the antenna, eliminating the need for separate amplifiers and reducing component count while maintaining signal quality through frequency-based separation.
Solution Approach 2:
The amplifier is designed to perform multiple functions by amplifying both uplink and downlink signals through a single path. The duplexer enables this universal amplifier to handle different signal directions by filtering and directing frequencies appropriately, allowing one amplifier to replace what would traditionally require two separate amplifiers.
2Reliability
If separate amplification paths are used for uplink and downlink signals, then signal amplification can be optimized, but power consumption and heat generation increase
Solution Approach 1:
The patent merges two separate amplification systems into one shared amplification path, reducing the total power consumption by eliminating redundant amplifier components. The single amplifier serves both uplink and downlink directions, and the duplexer ensures proper signal routing without requiring additional active amplification components, thereby reducing overall energy usage while maintaining amplification effectiveness.
3Reliability
If separate amplification paths are used for uplink and downlink signals, then signal processing can be optimized, but device size and cost increase
Solution Approach 1:
The patent consolidates separate amplification paths into a single shared path, reducing the physical space required for amplifier components. The duplexer integrates frequency filtering and signal direction control within the existing signal path infrastructure, eliminating the need for additional separate amplifier modules and reducing overall device footprint while maintaining signal processing capabilities.
4Loss of energy
If combined duplexers are used to filter and direct signals, then insertion loss is reduced, but filtering complexity increases
Solution Approach 1:
The duplexer acts as an intermediary component that performs frequency filtering and signal direction control. It mediates between the antenna and the shared amplification path, separating uplink and downlink signals based on frequency bands. This intermediary approach reduces insertion loss by providing dedicated filtered paths for each signal direction while consolidating control functions, rather than requiring complex active filtering in the amplifier itself.
Data Source
AI summary
Technology for a combined duplexer is disclosed. The combined duplexer can include a first common port and a second common port, a first first direction filter is configured to pass a first direction signal in a first frequency band and, a first second direction filter to pass a second direction signal in a second frequency band, and a second first direction filter to pass the first signal in the first frequency band. The first first direction filter and the first second direction filter share the first common port. The first second direction filter and the second first direction filter share the second common port.