Modeling Superconducting Transmission Lines for Signal Integrity
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Solution Overview
Problem
It is challenging to model and characterize the behavior of passive transmission lines in superconducting electronic circuit designs, making it difficult to analyze and adjust them for improved performance.
Innovation Solution
A system and method that generate a model for passive transmission lines by determining scattering parameters and simulating the superconducting electronic circuit design, allowing for adjustments to be made to improve performance by varying signal reflections and periodicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If passive transmission lines are used in superconducting electronic circuits, then signal transmission is enabled, but modeling and characterizing their behavior becomes difficult
Solution Approach 1:
The patent creates a computational model that copies the essential behavior of passive transmission lines by representing them as sequences of discrete transmission line segments. Each segment is characterized by impedance and propagation delay parameters, allowing the complex continuous transmission line to be replicated in a simplified discrete form that is easier to model and simulate while maintaining accurate signal transmission characteristics.
Solution Approach 2:
The patent divides the passive transmission line into multiple discrete segments, each with specific impedance and propagation delay characteristics. This segmentation transforms the continuous transmission line into a series of manageable discrete elements that can be individually modeled and simulated, reducing the overall modeling difficulty while preserving the cumulative transmission behavior.
2Reliability
If transmission line parameters are varied to improve performance, then signal quality improves, but determining optimal adjustments becomes complex
Solution Approach 1:
The patent implements a feedback mechanism where signal transmission characteristics are measured or simulated, and the results are used to adjust transmission line parameters such as impedance and propagation delay. This iterative feedback process allows systematic optimization of signal quality by continuously monitoring performance and making targeted adjustments to transmission line characteristics.
Solution Approach 2:
The patent systematically varies key transmission line parameters including impedance value, propagation delay, and segment length to optimize signal transmission performance. By changing these parameters in controlled ways and observing the impact on signal quality, the patent enables determination of optimal transmission line configurations without excessive complexity in the adjustment process.
Data Source
AI summary
The present disclosure describes a system and method for generating and/or adjusting a superconducting electronic circuit design. According to an embodiment, the system includes a memory and a processor communicatively coupled to the memory. The processor determines a slope in a voltage pulse at a transmitter for a passive transmission line of a superconducting electronic circuit design and determines a model for the passive transmission line based on the slope. The processor also simulates the superconducting electronic circuit design using the model and makes an adjustment to the transmitter based on simulating the superconducting electronic circuit design.