Multi-Layer Cable Repeater for Long-Distance Signal Integrity
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Solution Overview
Problem
Conventional flat cables lack an external shield and impedance matching, leading to reflection loss and communication errors, especially in long-distance communication where signal attenuation and interference increase, limiting the distance between the transmitting and receiving ends.
Innovation Solution
A multi-faceted signal amplification repeater with N repeater modules surrounding a multi-layer structured cable, featuring connect pins and power units for signal amplification and impedance matching, along with a shielded cable structure to reduce interference and ensure stable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional flat cables are used without external shield and impedance matching, then manufacturing cost is low and structure is simple, but reflection loss occurs and communication errors increase in long-distance communication
Solution Approach 1:
The cable is divided into multiple layers with distinct functions: inner shield layer for impedance matching and reflection reduction, outer shield layer for electromagnetic interference protection, and separate power/communication line arrangements. This segmentation allows each layer to address specific problems independently, improving overall communication reliability without requiring complete structural redesign.
Solution Approach 2:
The cable employs a nested multi-layer structure where the inner shield is positioned inside the outer shield, and power lines and communication lines are arranged in concentric layers. This nesting approach allows multiple protective and functional elements to be integrated within the cable without significantly increasing external dimensions, balancing reliability improvement with structural complexity management.
2Length of stationary object
If cable length is increased to extend communication distance, then coverage area increases, but signal attenuation and communication errors increase
Solution Approach 1:
The cable incorporates preliminary protective measures through its multi-layer shielded structure and impedance-matched inner shield, which are designed to prevent signal degradation before it occurs during long-distance transmission. The power lines are also positioned to provide preliminary power reinforcement, counteracting attenuation effects as the signal travels through extended cable lengths.
3Ease of manufacture
If conventional cables without impedance matching are used, then manufacturing is simple, but reflected power is generated causing uneven power transmission
Solution Approach 1:
Impedance matching is implemented specifically at the interface between the inner shield and communication lines, where reflection problems occur most severely. This localized application of impedance matching targeted at the critical interface area effectively reduces reflected power and improves power transmission efficiency without requiring impedance matching throughout the entire cable structure, thus maintaining manufacturing simplicity.
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 effectively addresses signal attenuation and communication errors in long-distance communication by amplifying signals and matching impedance, ensuring stable and efficient transmission.
Implementation Method 1
M (M is an integer greater than or equal to 1 but less than N) repeater modules are repeater units that amplify a signal transmitted through the cable
Implementation Method 2
a first shield disposed between the communication line and the power line to shield signals against interference between the power line and the communication line
Implementation Method 3
impedance matching, which makes the impedance of the cable the same as the impedance of the receiving end, is used as a method to reduce reflection loss due to the difference in impedance between the cable and the receiving end
Data Source
AI summary
The present invention provides a multi-faceted signal amplification repeater including N (N is an integer of 3 or more) repeater modules surrounding a cable for signal transmission between a transmitting end and a receiving end; and N connect pins connecting the N repeater modules to each other, wherein among the N repeater modules, M (M is an integer greater than or equal to 1 but less than N) repeater modules are repeater units that amplify a signal transmitted through the cable, and among the N repeater modules, L (L is an integer equal to N−M) power units are power units that supply power for an operation of the repeater units.