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Flexible Phased Array Shape Reconstruction

Mizrahi, Oren S. and Fikes, Austin and Hajimiri, Ali (2021) Flexible Phased Array Shape Reconstruction. In: 2021 IEEE MTT-S International Microwave Symposium (IMS). IEEE , Piscataway, NJ, pp. 31-33. ISBN 978-1-6654-0307-8. https://resolver.caltech.edu/CaltechAUTHORS:20220105-101236400

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Abstract

Lightweight, flexible phased arrays enable new applications by dynamically changing shape during deployment and operation. However, these shape changes must be tracked and accounted for by changing the element excitation in order for the array to continue proper operation. We propose a framework for reconstructing the shape of a flexible phased array using only measurements of mutual coupling between the antennas in the array. The framework is demonstrated using a passive 2.5 GHz phased array and fixed to 8 different frames of known radii of convex and concave curvature. Our results show the ability to reconstruct shape to within ≈ 0.04λ position error, even in cases where the phased array is bent dramatically, without any advanced knowledge or additional information. The framework is modular and can be easily adapted to other phased array systems with different antennas, frequencies, and physical constraints.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/ims19712.2021.9574941DOIArticle
ORCID:
AuthorORCID
Mizrahi, Oren S.0000-0003-4271-8822
Fikes, Austin0000-0003-4889-5782
Hajimiri, Ali0000-0001-6736-8019
Additional Information:© 2021 IEEE. The authors would like to thank Mohith Manohara for his help building flexible phased array shape calibration infrastructure in the Caltech Holistic Integrated Circuits lab.
Subject Keywords:Signal Processing, Flexible Electronics, Phased Array, Shape Sensing, EDM
DOI:10.1109/ims19712.2021.9574941
Record Number:CaltechAUTHORS:20220105-112415300
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20220105-101236400
Official Citation:O. S. Mizrahi, A. Fikes and A. Hajimiri, "Flexible Phased Array Shape Reconstruction," 2021 IEEE MTT-S International Microwave Symposium (IMS), 2021, pp. 31-33, doi: 10.1109/IMS19712.2021.9574941
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:112708
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:09 Jan 2022 21:03
Last Modified:09 Jan 2022 21:03

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