Shared Matching Network Circuit for Multi-Path Impedance Matching
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Solution Overview
Problem
Conventional impedance matching networks occupy significant chip area and interact negatively when positioned on related signal paths, requiring re-design and affecting overall electronic device performance.
Innovation Solution
A matching network circuit with a matching unit and an impedance unit, coupled between common and separate path ports, performs impedance matching without switches, allowing shared impedance control and reducing chip area usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional impedance matching networks are used, then impedance matching can be achieved, but chip area is significantly occupied
Solution Approach 1:
The patent combines multiple impedance matching networks into a single shared matching network circuit that serves multiple signal paths simultaneously. The matching network includes impedance adjustment units that can be shared across different signal paths, reducing the total chip area required compared to having separate matching networks for each path.
Solution Approach 2:
The matching network is designed with multi-functional impedance adjustment units that can serve multiple signal paths. The circuit configuration allows the same matching network to perform impedance matching for different signal paths by adjusting the impedance values of the shared components, making the system more universal and area-efficient.
2Adaptability or versatility
If multiple conventional impedance matching networks are positioned on related signal paths, then each path can be matched independently, but re-design is required due to mutual interference
Solution Approach 1:
The patent employs dynamically adjustable impedance elements within the shared matching network that can be tuned to provide independent matching for each signal path. The impedance adjustment units can be configured through control signals to achieve optimal matching for different paths without requiring separate static matching networks, thereby reducing design complexity while maintaining adaptability.
3Reliability
If conventional impedance matching networks are used, then transmission issues can be resolved, but side effects occur that affect overall device performance
Solution Approach 1:
The shared matching network acts as an intermediary structure that coordinates impedance matching across multiple signal paths. By using a unified matching approach with shared impedance adjustment units, the circuit reduces harmful interactions and side effects between adjacent matching networks while maintaining effective transmission performance on each path.
Data Source
AI summary
A matching network circuit and an associated apparatus are provided. The matching network circuit includes a matching unit coupled between a common path port and a first path port of the matching network circuit, and an impedance unit coupled between the common path port and a second path port of the matching network circuit. The common path port is utilized for connecting the matching network circuit to a common path, the first path port is utilized for connecting the matching network circuit to a first device on a first path, and the second path port is utilized for connecting the matching network circuit to a second device on a second path. The matching unit is arranged for performing impedance matching between the common path port and the first path port, and the impedance unit is arranged for performing impedance matching between the common path port and the second path port.