Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
512750 | Engineering Analysis with Boundary Elements | 2013 | 7 Pages |
Abstract
This work presents shape derivatives of the system matrix representing electric field integral equation discretized with Raviart–Thomas basis functions. The arising integrals are easy to compute with similar methods as the entries of the original system matrix. The results are compared to derivatives computed with automatic differentiation technique and finite differences, and are found to be in an excellent agreement. Furthermore, the derived formulas are employed to analyze shape sensitivity of the input impedance of a planar inverted F-antenna, and the results are compared to those obtained using a finite difference approximation.
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Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Juhani Kataja, Jukka I. Toivanen,