Guard Pattern Circuit Structure for Crosstalk Reduction
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Solution Overview
Problem
As mobile terminals become more complex with increased components and data transmission, electromagnetic interference between circuit lines leads to noise generation, compromising signal quality and efficiency.
Innovation Solution
A circuit structure with strategically placed guard patterns, such as meander-shaped or intersecting patterns, between transmission lines to minimize electromagnetic interference, adjusting mutual capacitance and inductance to reduce cross-talk and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If transmission lines are arranged close to each other to maintain compact design, then device area is reduced, but electromagnetic interference and cross-talk increase
Solution Approach 1:
A guard pattern is introduced as an intermediary element between the two transmission lines. This guard pattern acts as a mediator that blocks electromagnetic field coupling between the transmission lines, thereby reducing cross-talk and interference while allowing the lines to remain in close proximity for compact design
Solution Approach 2:
The guard pattern is segmented into multiple sections (first guard pattern section, second guard pattern section, third guard pattern section) with different configurations. Each segment serves to reduce interference in specific regions, allowing effective noise reduction while maintaining compact spacing between transmission lines
2Object-affected harmful factors
If guard pattern is added between transmission lines to reduce cross-talk, then electromagnetic interference is minimized, but device complexity increases
Solution Approach 1:
The guard pattern is selectively applied only in specific regions where interference occurs most, rather than uniformly across the entire transmission line length. The pattern density and configuration vary locally to match the interference distribution, reducing overall complexity while maintaining effectiveness
Solution Approach 2:
The guard pattern is implemented partially between the transmission lines rather than completely enclosing them. This partial application provides sufficient interference reduction for the critical sections while avoiding the excessive complexity of full enclosure structures
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 proposed circuit structure effectively reduces noise and improves signal quality by minimizing cross-talk between transmission lines without increasing the gap between them, maintaining a compact design while enhancing signal transmission efficiency.
Implementation Method 1
adjusting mutual capacitance and inductance to reduce cross-talk and noise
Implementation Method 2
adjusting mutual capacitance and inductance to reduce cross-talk and noise
Data Source
AI summary
A circuit structure and a mobile terminal having a circuit structure are disclosed. The circuit structure may include two transmission lines that extend in a first direction to transmit a signal, and a guard pattern provided between the two transmission lines. The guard pattern may include a plurality of slots each having an open end and a closed end in a second direction. The guard pattern arranged between the transmission lines may lower cross talk by adjusting mutual capacitance so as to improve signal quality.