Modeling and design of microwave devices based on ferromagnetic nanowires
First Edition
As wireless communication systems are flourishing and operating frequencies are progressively increasing, there exists nowadays a strong demand for RF devices at millimeter wavelengths. Nonmetallic ferromagnetic materials, also called ferrites, have found wide applications in RF technology as they possess the combined properties of a magnetic material and an electrical insulator. The remarkable flexibility in tailoring the magnetic properties, the very high resistivity, price and performance considerations make ferrites the first choice materials for microwave applications. However, the frequency range of operation, the bandwidth, and the aptitude to be integrated in MMICs should be improved.
In this work, a new class of magnetic materials which could overcome the main disadvantages encountered when using ferrites in RF devices operating at millimeter wavelengths is studied. This material, called magnetic nanowired substrate (MNWS), is composed of an array of ferromagnetic nanowires embedded in a polymer substrate. First, the ferromagnetic nature of nanowires yields very high saturation magnetizations, thus operating frequencies higher than 40 GHz. Next, the nanometric wire diameter allows an easy penetration of electromagnetic waves inside the MNWS. Moreover, due to the high aspect ratio of nanowires the desired magnetic properties are obtained without an external magnetic field. This leads to a considerable potential increase of the compactness and ease of integration in MMICs. Various potential applications, such as filters and circulators, of this new material are presented.
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- Publisher
- Presses universitaires de Louvain
- Title Part
-
Numéro 47
- Author
- Aimad Saib,
- Collection
- Thèses de l'École polytechnique de Louvain | n° 47
- Language
- English
- Tags
- Angleterre, Antoine Van Dyck, Antoon Van Dyck, Anvers, Charles I d'Angleterre, cour, Europe du Nord, Flandres, Habsbourg, Musée du Louvre, Pays-Bas, peintures, Pierre Paul Rubens, portrait, Portrait d'apparat, Portrait de cour, XVIIe siècle
- Publisher Category
- Applied Sciences > Computer Science > Networks and telecommunications
- Publisher Category
- Applied Sciences > Electricity
- Publisher Category
- Applied Sciences
- BISAC Subject Heading
- TEC000000 TECHNOLOGY & ENGINEERING
- Onix Audience Codes
- 06 Professional and scholarly
- CLIL (Version 2013-2019)
- 3069 TECHNIQUES ET SCIENCES APPLIQUEES
- Title First Published
- 01 January 2004
- Type of Work
- Thesis
- Original Language
- English
Livre broché
- Publication Date
- 15 May 2023
- ISBN-13
- 978-2-35031-761-8
- Illustrations
- illustrations, color
- Extent
- Absolute page count : 352
- Legal Copyright Date
- mai 2023
- Code
- 105319
- List Price
- 80.00 €
- ONIX XML
- Version 2.1, Version 3
- Publication Date
- 15 May 2023
- ISBN-13
- 978-2-35031-764-9
- Illustrations
- illustrations, color
- Extent
- Absolute page count : 352
- Legal Copyright Date
- mai 2023
- Code
- PDF105319
- ONIX XML
- Version 2.1, Version 3
Site web
- Publication Date
- 15 May 2023
- ISBN-13
- 978-2-35031-762-5
- Illustrations
- illustrations, color
- Code
- WEB105319
- ONIX XML
- Version 2.1, Version 3
ePub
- Publication Date
- 15 May 2023
- ISBN-13
- 978-2-35031-763-2
- Illustrations
- illustrations, color
- Extent
- Absolute page count : 352
- Legal Copyright Date
- mai 2023
- Code
- EPUB105319
- ONIX XML
- Version 2.1, Version 3
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Contents
Scientific publications iv
Introduction ix
1 FMR Theory in Magnetic Nanowires 1
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Susceptibility tensor of infinite mediu