Coupled-Conductor Receiver Circuit for Self-Resonance Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems experience self-resonance due to parasitic capacitance and inductance components of electrodes, leading to degradation of high-speed data transmission.
Innovation Solution
Incorporating a high-pass filter and resistor configuration between electrodes to suppress self-resonance, with a cut-off frequency lower than the self-resonance frequency, and matching impedance to resistors to prevent waveform distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-speed wireless communication is performed using frequency components near the self-resonance frequency, then data transmission speed is improved, but data quality degrades due to self-resonance
Solution Approach 1:
The invention converts the harmful self-resonance effect into a beneficial filtering mechanism. By intentionally designing a high-pass filter with a cut-off frequency that matches the self-resonance frequency of the electrode, the parasitic resonance is suppressed rather than allowing it to degrade the signal. This transforms the harmful parasitic capacitance and inductance into a controlled filtering function that eliminates data degradation while maintaining high-speed transmission capability
Solution Approach 2:
The invention changes the frequency parameter relationship between the filter and the electrode resonance. Specifically, it sets the high-pass filter cut-off frequency to be equal to or higher than the self-resonance frequency of the electrode, which fundamentally alters how the system handles resonant frequencies. This parameter adjustment ensures that the resonant frequency components are filtered out, preventing data degradation while allowing higher frequency components to pass for fast data transmission
2Reliability
If a high-pass filter with cut-off frequency equal to or higher than self-resonance frequency is used, then self-resonance is suppressed, but low-frequency signal components may be attenuated
Solution Approach 1:
The invention optimizes the high-pass filter cut-off frequency parameter to be equal to or higher than the self-resonance frequency but not excessively high. This careful parameter selection ensures that the filter effectively suppresses self-resonance while preserving essential low-frequency signal components needed for complete data transmission. The parameter is tuned to the specific electrode characteristics to achieve the optimal balance between resonance suppression and signal preservation
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
Enhances high-speed data transmission by suppressing self-resonance and maintaining signal integrity, improving waveform quality and reducing peaking.
Implementation Method 1
a coupled conductor including two electrodes configured to receive a differential signal through electromagnetic field coupling with another communication apparatus
Data Source
AI summary
A receiving device receives a signal through electromagnetic field coupling with another communication apparatus, and the receiving device includes a coupled conductor including two electrodes, a circuit element section that is disposed between the two electrodes and includes a high-pass filter and a resistor, and a receiving circuit, wherein a cut-off frequency of the high-pass filter is lower than a self-resonance frequency of the coupled conductor.