Efficient Computation of Green's Functions for Multilayer Media in the Context of 5G Applications

Date

2021-03-22

Author

Mittra, Raj
Özgün, Özlem
Li, Chao
Kuzuoğlu, Mustafa

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This paper presents a novel method for effective computation of Sommerfeld integrals which arise in problems involving antennas or scatterers embedded in planar multilayered media. Sommerfeld integrals that need to be computed in the evaluation of spatial-domain Green's functions are often highly oscillatory and slowly decaying. For this reason, standard numerical integration methods are not efficient for such integrals, especially at millimeter waves. The main motivation of the proposed method is to compute the Sommerfeld integral tails through extrapolation and analytical integration. The approach is inherently fast and accurate. Numerical examples have been provided to validate the accuracy and efficiency of the proposed method.

Subject Keywords

5G, Extrapolation, Green's functions, integration, Layered media, Method of moments (MoM), Sommerfeld integral

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85105522712&origin=inward
https://hdl.handle.net/11511/90850

DOI

https://doi.org/10.23919/eucap51087.2021.9411137

Conference Name

15th European Conference on Antennas and Propagation, EuCAP 2021

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

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An Efficient Approach for Evaluation of Multilayered Media Green's Functions ÖZGÜN, ÖZLEM; Li, Chao; Kuzuoğlu, Mustafa; Mittra, Raj (2021-01-01) © 2021 IEEE.In this study, a novel approach is presented for efficient evaluation of Sommerfeld integrals arising in spatial-domain Green's functions in planar multilayered media. This approach allows us to tackle the difficulties encountered during the integration of the Sommerfeld integrals, which exhibit highly oscillatory and slowly decaying nature occurring especially at very high frequencies, e.g., at millimeter waves, that are finding increasing use in applications such as 5G and beyond. The oscillat...
An Efficient Numerical Approach for Evaluating Sommerfeld Integrals Arising in the Construction of Green's Functions for Layered Media Özgün, Özlem; Mittra, Raj; Kuzuoğlu, Mustafa (2022-01-01) This paper presents an efficient approach for evaluating the Sommerfeld integrals in the spectral domain, whose integrands typically show an oscillatory and slowly decaying behavior at high frequencies, e.g., in the millimeter wave regime. It is well known that these integrals arise in the representations of the dyadic Green's functions of layered media and efficient computation of these Green's functions is key to rapid CEM modeling of patch antennas and printed circuits designed for 5G appli...
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Citation Formats

R. Mittra, Ö. Özgün, C. Li, and M. Kuzuoğlu, “Efficient Computation of Green’s Functions for Multilayer Media in the Context of 5G Applications,” presented at the 15th European Conference on Antennas and Propagation, EuCAP 2021, Düsseldorf, Almanya, 2021, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85105522712&origin=inward.