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Systematic Generation of Arbitrary Antenna Geometries

Altinozen, Ekrem; Harrison, Ian; Vukovic, Ana; Sewell, Phillip

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Authors

Ekrem Altinozen

Ian Harrison

ANA VUKOVIC ANA.VUKOVIC@NOTTINGHAM.AC.UK
Professor of Electromagnetic Applications

PHIL SEWELL phillip.sewell@nottingham.ac.uk
Professor of Electromagnetics



Abstract

Applications for conformal, wearable antennas are growing for consumer electronics. Hence, it is important to assess to what degree antenna performance can be tolerant to in-situ deformations that can take the form of bending, crumpling and twisting and combinations of these effects. However, generating geometries of arbitrary antenna deformations such as bending, crumpling and twisting, that can be processed by standard electromagnetic software is a major challenge that significantly complicates full assessment of in-situ antenna performance. Constructive Solid Geometry methods of generating geometries is difficult to robustly apply to non-conformal antennas and more flexible techniques required to progress the antenna studies further. To address this challenge, this paper investigates the utility of the Green Coordinate method for spatial manipulation of 3D objects. First a calibration of a straightforward application of the GC method against a reference case of a patch antenna bent over a cylindrical surface, which can also be generated exactly, is undertaken. The paper shows that systemic scaling distortions are introduced by the GC method and introduces a compensation method that can overcome these distortions. Subsequently, the compensated method is used to obtain new predictions of the electromagnetic performance of patch antennas with deformations.

Journal Article Type Article
Acceptance Date Dec 12, 2021
Online Publication Date Apr 13, 2022
Publication Date 2022-08
Deposit Date Dec 17, 2021
Publicly Available Date Apr 13, 2022
Journal IEEE Transactions on Antennas and Propagation
Print ISSN 0018-926X
Electronic ISSN 1558-2221
Publisher Institute of Electrical and Electronics Engineers (IEEE)
Peer Reviewed Peer Reviewed
Volume 70
Issue 8
Pages 6377-6387
DOI https://doi.org/10.1109/TAP.2022.3165539
Keywords Electrical and Electronic Engineering
Public URL https://nottingham-repository.worktribe.com/output/7022934
Publisher URL https://ieeexplore.ieee.org/document/9756902
Additional Information © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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