Finite element fast frequency sweeping method and device based on MPVL algorithm

By adopting a finite element fast frequency sweep method based on the MPVL algorithm, the problem of low efficiency in electromagnetic simulation software in electromagnetic full-wave simulation analysis is solved. By constructing and reconstructing matrix equations, it can adapt to various boundary and port conditions and achieve simulation analysis that balances fast frequency sweep and accuracy.

CN118940591BActive Publication Date: 2026-02-06XIDIAN UNIV +1
3 Cites 0 Cited by

Patent Information

Application Number
CN202411430959.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-14
Publication Date
2026-02-06
Estimated Expiration
2044-10-14

AI Technical Summary

Technical Problem

In electromagnetic full-wave simulation analysis, existing electromagnetic simulation software uses discrete frequency sweeping methods, which are highly accurate but inefficient, especially when dealing with multiple expanded frequency points, and are extremely time-consuming, failing to meet the need for rapid frequency sweeping.

Method used

A fast frequency sweeping method based on the MPVL algorithm is adopted. By constructing finite element boundary value equations and variational equations, the wavenumber or the square root of the wavenumber is extracted as the frequency correlation common factor to reconstruct the matrix equation. The MPVL algorithm is then used to solve the matrix equation at a given expanded frequency point, which can adapt to various boundary and port conditions.

Benefits of technology

While ensuring the accuracy of the frequency sweep results, it significantly improves computational efficiency, especially when solving a large number of frequency points, it significantly accelerates the simulation analysis process.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application discloses a kind of based on MPVL algorithm's finite element fast sweep method and device, belong to electromagnetic full-wave simulation technical field, method includes: according to the port type and / or boundary type of electromagnetic field model, construct finite element boundary value equation and finite element variational equation;The finite element boundary value equation is substituted into finite element variational equation to obtain new finite element variational equation;According to the characteristics of wave number in new finite element variational equation, wave number or square root of wave number is extracted as the frequency-related common factor of each term in new finite element variational equation and is arranged, to obtain arrangement equation;Arrange equation is reconstructed as the matrix equation that can use MPVL algorithm to solve, and based on MPVL algorithm, the matrix equation at given expansion frequency point is solved to obtain electromagnetic field value under different excitation.The application realizes fast sweep, and sweep result has higher accuracy.
Need to check novelty before this filing date? Find Prior Art