Pattern Reconstruction for Antennas with Characteristic Mode Analysis and Surrogate Model

Authors

  • Adem Yilmaz 1) Department of Electrical and Electronics Engineering, KTO Karatay University, Konya, Turkey 2) Department of Electrical and Electronics Engineering, Ankara Yildirim Beyazit University, Ankara, Turkey
  • Hulusi Acikgoz Department of Electrical and Electronics Engineering, KTO Karatay University, Konya, Turkey
  • Alaa E. El-Rouby Department of Electrical and Electronics Engineering, Ankara Yildirim Beyazit University, Ankara, Turkey

DOI:

https://doi.org/10.13052/2022.ACES.J.370303

Keywords:

Bayesian inference, characteristic mode analysis, pattern synthesis, polynomial chaos expansion

Abstract

A novel approach is applied to obtain a desired pattern for a perfect electric plate with two ports. The location of ports is decided with the help of characteristic mode analysis. Two capacitive coupling elements are chosen to be used as excitation. The magnitude and phase of each excitation are obtained by the Bayesian inference method. In order to avoid complexity of computational design, a surrogate model, which is based on polynomial chaos expansion, is built. The surrogate model is ensured to mimic the computational model over 90%. Then, the desired pattern is compared with the synthesized one, and it is seen that the two patterns fit very well to each other and the correlation between the two patterns is above 0.9.

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Author Biographies

Adem Yilmaz, 1) Department of Electrical and Electronics Engineering, KTO Karatay University, Konya, Turkey 2) Department of Electrical and Electronics Engineering, Ankara Yildirim Beyazit University, Ankara, Turkey

Adem Yilmaz received the B.S. and M.S. degrees in electrical and electronics engineering from the University of Gaziantep and Ankara Yildirim Beyazit University, respectively. He is currently working toward the Ph.D. degree with Ankara Yildirim Beyazit University, Turkey.

From 2010 to 2011, he was a Researcher with Goethe Frankfurt University, Germany. Since 2011, he has been a Research Assistant with KTO Karatay University. His research interests include computational electromagnetics, the theory of characteristic modes, and design and characterization of periodic structures.

Hulusi Acikgoz, Department of Electrical and Electronics Engineering, KTO Karatay University, Konya, Turkey

Hulusi Acikgoz received the B.S. and master’s degrees in applied physics from Marne-La-Vallée University, France, and the Ph.D. degree in electrical engineering from Pierre and Marie Curie University, Paris, France, in 2008.

He has been a Teaching Assistant with UPMC-Paris IV from 2009 to 2010. After a year of post-doctoral research at L2E (Laboratoire d’Electronique et d’Electromagn Supétisme) in computational electromagnetic dosimetry, he joined KTO Karatay University, Konya, Turkey, in 2011, as an Associate Professor. His research interests include microwave characterization of dielectric materials, electromagnetic dosimetry, homogenization, antennas for microwave cancer ablation, high impedance surfaces, graphene applications in EM, and statistical analysis of EM structures.

Alaa E. El-Rouby, Department of Electrical and Electronics Engineering, Ankara Yildirim Beyazit University, Ankara, Turkey

Alaa E. El-Rouby received the B.Sc. and M.Sc. degrees from Cairo University, Egypt, in 1993 and 1996, respectively, and the Ph.D. degree from the University of Michigan, Ann Arbor, MI, USA, in 2000, all in electrical engineering.

He started his academic career as an Assistant Professor, and he was then an Associate

Professor with Cairo University till 2014. He then moved to Yildirim Beyazit University, where he is currently a Professor. Dr. Elrouby had a strong connection with semiconductor industry through working for Intel Corp. and then for Mentor Graphics for over 14 years. Since 2015, he has been working as a consultant for RF/MW, antenna, GNSS, PCB, and signal and power integrity, which are his current research interestsas well.

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Published

2022-07-10

How to Cite

[1]
A. . Yilmaz, H. . Acikgoz, and A. E. . El-Rouby, “Pattern Reconstruction for Antennas with Characteristic Mode Analysis and Surrogate Model”, ACES Journal, vol. 37, no. 03, pp. 273–280, Jul. 2022.

Issue

2022: Vol 37 Iss 3

Section

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