Permittivity model for ferromagnetic nanowired substrates

被引：23

作者：

Spiegel, Judith ^{[1
]}

de la Torre, Joaquin

Darques, Michael

Piraux, Luc

Huynen, Isabelle

机构：

[1] Univ Catholique Louvain, Microwave Lab, B-1348 Louvain, Belgium

[2] Univ Catholique Louvain, PCPM Lab, B-1348 Louvain, Belgium

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2007年 / 17卷 / 07期

关键词：

artificial material; ferromagnetic nanowire losses; permittivity; polycarbonate template;

D O I：

10.1109/LMWC.2007.899303

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter presents the influence of ferromagnetic nanowires on permittivity and losses on a so-filled membrane. For this purpose a theoretical permittivity model has been developed by considering geometrical parameters of the substrate such as the porosity of the membrane and the height of the nanowires. It has been validated by microstrip line measurements on a composite substrate filled with cobalt nanowires. The ferromagnetic nanowires enhance the permittivity, but give no further contribution to the losses beyond the ferromagnetic resonance. This is confirmed by measurements on a similar topology including non ferromagnetic copper nanowires.

引用

页码：492 / 494

页数：3

共 4 条

[1] A novel nanostructured microstrip device for tunable stopband filtering applications at microwaves [J].

Huynen, I ;

Goglio, G ;

Vanhoenacker, D ;

Vander Vorst, A .

IEEE MICROWAVE AND GUIDED WAVE LETTERS, 1999, 9 (10) :401-403

[2] Extremely low frequency plasmons in metallic mesostructures [J].

Pendry, JB ;

Holden, AJ ;

Stewart, WJ ;

Youngs, I .

PHYSICAL REVIEW LETTERS, 1996, 76 (25) :4773-4776

[3] Unbiased microwave circulator based on ferromagnetic nanowires arrays of tunable magnetization state [J].

Saib, A ;

Darques, M ;

Piraux, L ;

Vanhoenacker-Janvier, D ;

Huynen, I .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2005, 38 (16) :2759-2763

[4]

SPIEGEL J, 2006, P 9IEMES J CAR MICR

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