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High-performance magnetoinductive directional filters
File(s)
electronics-11-00845.pdf (4.98 MB)
Published version
OA Location
Author(s)
Voronov, Artem
Syms, Richard RA
Sydoruk, Oleksiy
Type
Journal Article
Abstract
Multiport magnetoinductive (MI) devices with directional filter properties are presented. Design equations are developed and solved using wave analysis and dispersion theory, and it is shown that high-performance directional filters can be realised for use both in MI systems with complex, frequency-dependent impedance and in conventional systems with real impedance. Wave analysis is used to reduce the complexity of circuit equations. High-performance MI structures combining directional and infinite rejection filtering are demonstrated, as well as multiple-passband high-rejection filtering. A new method for improving filtering performance through multipath loss compensation is described. Methods for constructing tuneable devices using toroidal ferrite-cored transformers are proposed and demonstrated, and experimental results for tuneable MI directional filters are shown to agree with theoretical models. Limitations are explored, and power handling sufficient for HF RFID applications is demonstrated, despite the use of ferrite materials.
Date Issued
2022-03-08
Date Acceptance
2022-03-04
Citation
Electronics, 2022, 11 (6), pp.1-16
URI
URL
DOI
ISSN
1450-5843
Publisher
University of Banja Luka
Start Page
1
End Page
16
Journal / Book Title
Electronics
Volume
11
Issue
6
Copyright Statement
© 2022 by the authors.
Licensee MDPI, Basel, Switzerland.
This article is an open access article
distributed under the terms and
conditions of the Creative Commons
Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
License URL
Identifier
https://www.mdpi.com/2079-9292/11/6/845
Subjects
0906 Electrical and Electronic Engineering
Publication Status
Published
Date Publish Online
2022-03-08