Abstract
The sunflower array topology concept is introduced, for the first time, to the constrained infinitesimal dipole modeling (IDM) technique to increase the computational efficiency and reduce the modeling errors. The concept is applied to embedded element pattern predictions via matrix inversion. A novel study on the impact of the type and orientation of the dipoles on the IDM performance in pattern mean square error (MSE) and stability against noise (linked to the matrix condition number) is conducted. A 5 by 5 patch antenna array modeled with 81 dipoles is used for demonstration. It is shown that using magnetic dipoles (oriented in the direction of a radiating edge of the patch) in IDM yields the optimal performance. Besides, the sunflower topology significantly lowers the MSE (by 5 dB, on average), while reducing the condition number by a factor of 10.
| Original language | English |
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| Title of host publication | Proceedings of the 2024 18th European Conference on Antennas and Propagation (EuCAP) |
| Publisher | IEEE |
| Number of pages | 5 |
| ISBN (Electronic) | 978-88-31299-09-1 |
| ISBN (Print) | 979-8-3503-9443-6 |
| DOIs | |
| Publication status | Published - 2024 |
| Event | 2024 18th European Conference on Antennas and Propagation (EuCAP) - Glasgow, United Kingdom Duration: 17 Mar 2024 → 22 Mar 2024 Conference number: 18th |
Conference
| Conference | 2024 18th European Conference on Antennas and Propagation (EuCAP) |
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| Country/Territory | United Kingdom |
| City | Glasgow |
| Period | 17/03/24 → 22/03/24 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Keywords
- antenna pattern prediction
- fast antenna modeling
- Fermat spiral
- infinitesimal dipoles