Equivalent Circuit Model for Electromagnetic Radiation Prediction
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Solution Overview
Problem
Existing electromagnetic full-wave solvers require intensive mathematical computations, making them time-consuming for predicting electromagnetic radiation characteristics of electronic components, and often provide results incompatible with time-domain circuit software, leading to analysis difficulties or incorrect results.
Innovation Solution
A method that constructs an equivalent circuit model for electronic components, calculates radiation currents, and inserts radiation resistance to predict electromagnetic radiation characteristics, allowing for rapid prediction of total radiated power and radiation patterns, compatible with circuit analysis software.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electromagnetic full-wave solver is used to predict electromagnetic radiation characteristics, then prediction accuracy is improved, but prediction time increases significantly
Solution Approach 1:
The patent segments the electromagnetic radiation prediction process into two parts: (1) using an equivalent circuit model to obtain initial radiation currents and characteristics, and (2) using these results to correct the model for obtaining final accurate results. This segmentation allows the majority of predictions to be made quickly using the simplified circuit model, with only necessary corrections applied afterward.
Solution Approach 2:
The patent introduces an equivalent circuit model as an intermediary between the simple time-domain circuit software and the accurate electromagnetic full-wave solver. This intermediary model provides quick predictions that can be corrected using full-wave solver results when needed, avoiding the need to run the full-wave solver for every prediction.
2Measurement precision
If electromagnetic full-wave solver is used to obtain radiation characteristics, then prediction accuracy is improved, but compatibility with time-domain circuit software deteriorates
Solution Approach 1:
The patent makes the equivalent circuit model universal by enabling it to serve multiple functions: (1) providing quick predictions compatible with time-domain circuit software, and (2) serving as a corrected model that incorporates electromagnetic radiation effects. The model can be used in both simple circuit analysis and accurate electromagnetic prediction scenarios.
Solution Approach 2:
The equivalent circuit model acts as an intermediary that bridges the gap between time-domain circuit software and electromagnetic full-wave solver results. It accepts inputs from circuit software and can be corrected using full-wave solver data, then outputs results that are compatible with circuit software while maintaining accuracy.
3Productivity
If equivalent circuit model is used for prediction, then prediction speed is improved, but prediction accuracy deteriorates
Solution Approach 1:
The patent performs preliminary action by first obtaining radiation currents using the equivalent circuit model before final accuracy correction. This preliminary prediction provides a good approximation that can be quickly corrected using full-wave solver results, reducing the need for iterative refinement.
Solution Approach 2:
The patent implements feedback by using the results from the equivalent circuit model prediction to inform and correct the final accurate prediction. The initial prediction serves as feedback that guides the correction process, allowing the system to converge to accurate results more efficiently.
Data Source
AI summary
A method for predicting electromagnetic radiation characteristics, a computer-readable recording medium and a simulator are provided. The method includes the steps of obtaining a plurality of first radiation currents in an equivalent circuit model of an electronic component, calculating a radiation resistance according to the first radiation currents, inserting the radiation resistance into the equivalent circuit model, and then obtaining a plurality of second radiation currents in the equivalent circuit model, and predicting electromagnetic radiation characteristics of the electronic component according to the second radiation currents.