Microwave circulator based on ferromagnetic nanowires in an alumina template

被引：63

作者：

Darques, M. ^{[1
]}

Medina, J. De la Torre ^{[1
]}

Piraux, L. ^{[1
]}

Cagnon, L. ^{[2
,3
]}

Huynen, I. ^{[4
]}

机构：

[1] Univ Catholique Louvain, Inst Condensed Matter & Nanosci, B-1348 Louvain, Belgium

[2] CNRS, Inst Neel, F-38042 Grenoble 9, France

[3] Univ Grenoble 1, F-38042 Grenoble 9, France

[4] ICTEAM, Microwave Lab, B-1348 Louvain, Belgium

来源：

NANOTECHNOLOGY | 2010年 / 21卷 / 14期

关键词：

PERMITTIVITY;

D O I：

10.1088/0957-4484/21/14/145208

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Unbiased planar microwave circulators were fabricated by electrodeposition of NiFe nanowires into porous alumina templates. Microwave properties of the devices are seen to depend drastically on the height of the nanowires and the newly developed devices exhibit improved features, compared to existing nanowire-based designs. Thanks to the high anisotropy of the nanowires, zero-field circulation modes may be observed in a frequency range from 10 to 30 GHz, with isolation as large as 30 dB, as well as low insertion losses -5 dB, making it compatible with industrial needs for device applications.

引用

页数：4

共 14 条

[11] Self-biased hexagonal ferrite coupled line circulators [J].

Queck, CK ;

Davis, LE .

ELECTRONICS LETTERS, 2003, 39 (22) :1595-1597

[12] An unbiased integrated microstrip circulator based on magnetic nanowired substrate [J].

Saib, A ;

Darques, ML ;

Piraux, L ;

Vanhoenacker-Janvier, D ;

Huynen, I .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2005, 53 (06) :2043-2049

[13]

SPIEGEL J, 2009, P 39 EUR MICR C, P582

[14] Permittivity model for ferromagnetic nanowired substrates [J].

Spiegel, Judith ;

de la Torre, Joaquin ;

Darques, Michael ;

Piraux, Luc ;

Huynen, Isabelle .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2007, 17 (07) :492-494

← 1 2 →