Print Email Facebook Twitter Estimation of Mutual Coupling in Integrated Lens Arrays Using a Geometrical Optics-Based Technique With Bi-Directional Forward Ray-Tracing Title Estimation of Mutual Coupling in Integrated Lens Arrays Using a Geometrical Optics-Based Technique With Bi-Directional Forward Ray-Tracing Author Dabironezare, Shahab Oddin (TU Delft Tera-Hertz Sensing; SRON Netherlands Institute for Space Research) Nair, A. (TU Delft Tera-Hertz Sensing) Neto, A. (TU Delft Tera-Hertz Sensing) Llombart, Nuria (TU Delft Tera-Hertz Sensing) Date 2024 Abstract The use of lens arrays in (sub)-millimeter sensing and communication applications will enable the development of integrated antenna front-ends with multiple independent beams as well as dynamic scanning capabilities. In applications such as MIMO communications, interferometric arrays, and Tx/Rx duplexing capabilities, a key parameter is the mutual coupling between the integrated antenna front-ends. In this work, we model such mutual coupling using a geometrical optics (GO) technique combined with bi-directional forward ray tracing. In this model, the mutual coupling is estimated by considering up to secondary reflections in lens array geometries. The proposed technique is then used to investigate the mutual coupling for low and high-density lens arrays as a function of feed locations. The accuracy of the model is also investigated in comparison to full wave simulations and measured data reaching a sufficient agreement to identify the regions within lens arrays with critical mutual coupling levels. Subject Geometrical optics (GO)lens antennamutual couplingsubmillimeter wave antennas To reference this document use: http://resolver.tudelft.nl/uuid:678ae13b-e3ea-45eb-a2b2-9a5aae2ee568 DOI https://doi.org/10.1109/TAP.2024.3390998 Embargo date 2024-12-07 ISSN 1558-2221 Source IEEE Transactions on Antennas and Propagation, 72 (6), 4796-4805 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-care Otherwise 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. Part of collection Institutional Repository Document type journal article Rights © 2024 Shahab Oddin Dabironezare, A. Nair, A. Neto, Nuria Llombart Files file embargo until 2024-12-07