Tunable Matching Network for Interference Mitigation in Communication Devices
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Solution Overview
Problem
Communication devices face interference issues due to environmental factors and network topology, affecting wireless communication quality, particularly in portable devices like cell phones and laptops, which existing technologies have not adequately addressed.
Innovation Solution
A communication device with a tunable matching network and feedback configuration that detects interferers and adjusts its tuning state to optimize performance, using a controller to manage the matching network's reactance and adjust operational characteristics based on open-loop or closed-loop feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed matching network is used in portable communication devices, then the device structure remains simple, but the wireless communication quality deteriorates due to environmental factors and antenna performance degradation
Solution Approach 1:
The patent applies dynamics by making the matching network tunable and adjustable. The matching network includes variable capacitors or inductors that can be dynamically adjusted to different states depending on the operating conditions, antenna configuration, and environmental factors. This allows the system to adapt to changing conditions rather than being fixed, thereby maintaining reliable wireless communication quality while managing complexity through controlled adjustability.
Solution Approach 2:
The patent changes the electrical parameters of the matching network by introducing tunable elements whose capacitance or inductance values can be varied. By adjusting these parameters based on feedback from the operating environment and communication quality metrics, the system optimizes antenna performance and maintains reliable communication despite environmental variations, resolving the contradiction between reliability and fixed structure simplicity.
2Adaptability or versatility
If the antenna is placed in various positions (next to user's head, in pocket, covered by hand), then the device becomes versatile for different use cases, but the antenna performance and wireless communication efficiency deteriorate
Solution Approach 1:
The patent employs dynamic adjustment of the matching network to compensate for different antenna positions and use cases. Whether the antenna is near the user's head, in a pocket, or covered by a hand, the matching network can be tuned to different states to optimize performance for each scenario. This dynamic adaptation maintains communication efficiency across diverse versatile usage conditions.
Solution Approach 2:
The patent implements feedback mechanisms that monitor communication quality and antenna performance in real-time. Based on this feedback, the system automatically adjusts the matching network parameters to compensate for the current antenna position and environmental conditions. This closed-loop control ensures that wireless communication efficiency is maintained regardless of how versatile the device's usage scenarios become.
3Reliability
If network topology and device location are considered for optimal communication, then communication quality improves, but the system complexity and difficulty of managing interference increase
Solution Approach 1:
The patent manages interference by changing the electrical parameters of the matching network based on detected interference conditions, network topology, and device location. Rather than implementing complex interference cancellation algorithms, the system adjusts the matching network's impedance parameters to optimize signal transmission and reception, thereby improving communication quality while keeping the interference management approach relatively simple and parameter-focused.
Data Source
AI summary
A system that incorporates teachings of the present disclosure may include, for example, a matching network including a tunable reactance circuit configured to be coupled to at least one of a transmitter portion and a receiver portion of a communication device, wherein the tunable reactance circuit is adjustable to a plurality of tuning states, and wherein the determination of a tuning state is based on parameters associated with a detected interference. Additional embodiments are disclosed.