Self-Biased Nonreciprocal Microstrip Phase Shifter on Magnetic Nanowired Substrate Suitable for Gyrator Applications

被引：17

作者：

Hamoir, Gael ^{[1
]}

De La Torre Medina, Joaquin ^{[2
]}

Piraux, Luc ^{[1
]}

Huynen, Isabelle ^{[3
]}

机构：

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

[2] Univ Michoacana, Fac Ciencias Fis Matemat, Morelia 58030, Michoacan, Mexico

[3] Catholic Univ Louvain, Inst Informat & Commun Technol Elect & Appl Math, B-1348 Louvain, Belgium

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2012年 / 60卷 / 07期

关键词：

Alumina; ferromagnetic nanowires; gyrator; integrated; microstrip; nonreciprocal; phase shifter; self-biased; MICROWAVE; DEVICES;

D O I：

10.1109/TMTT.2012.2195016

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：

Magnetic nanowired substrates (MNWS) have been used for the fabrication of a planar nonreciprocal microstrip device. It shows a differential phase shift of 300 degrees.cm(-1) at Ka-band without requiring the application of a dc bias magnetic field, and making it suitable for miniaturized gyrator applications. The nonreciprocal operation is achieved by loading the device with nanowires of different ferromagnetic materials. This allows to control the phase velocity of the microwave signal passing through the device by virtue of the spatial variation of the MNWS permeability. The measured microwave performances of the device have been reproduced with excellent accuracy using a proposed analytical model based on an effective medium theory and useful for the prediction of further tunable capabilities.

引用

页码：2152 / 2157

页数：6

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