Low Bias Field Hexagonal Y-Type Ferrite Phase Shifters at KU-Band

被引：15

作者：

Geiler, Anton L. ^{[1
]}

Wang, Jianwei ^{[1
]}

Gao, Jin Sheng ^{[1
]}

Yoon, Soack Dae ^{[1
]}

Chen, Yajie ^{[1
]}

Harris, Vincent G. ^{[1
]}

Vittoria, Carmine ^{[1
]}

机构：

[1] Northeastern Univ, Ctr Microwave Magnet Mat & Integrated Circuits, Dept Elect & Comp Engn, Boston, MA 02115 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2009年 / 45卷 / 10期

基金：

美国国家科学基金会;

关键词：

Ferrite passive device; ferromagnetic resonance; Galerkin's method; hexagonal ferrites; phase shifters; MICROSTRIP LINES;

D O I：

10.1109/TMAG.2009.2023881

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：

A microstrip line fabricated on a single crystal hexagonal Y-type ferrite substrate was utilized to achieve phase shifts of similar to 65 degrees/cm at K-U-band with an external bias field of only 100 Oe. This approach utilizes the rapid variation of the Y-type ferrite tensor permeability near the ferromagnetic antiresonance frequency. The magnetic and microwave properties of the substrate material were characterized by vibrating sample magnetometry and ferromagnetic resonance measurements. Numerical methods based on Galerkin's approach adapted to spectral domain were utilized to model the performance of the device while taking into account the correct form of the tensor magnetic permeability of the anisotropic and gyromagnetic substrate material. Good agreement between the numerical results and experimental data was obtained. A miniature electromagnet, based on a Metglas (TM) laminated yoke to minimize demagnetizing fields, was fabricated. Phase shifts of 50 degrees/cm were achieved with continuous drive currents of only 100 mA.

引用

页码：4179 / 4182

页数：4

共 11 条

[1]

Bonnenberg D., 1970, Landolt-Bornstein Numerical and Functional Relationships in Science and Technology, New series, Group III: Crystal and Solid State Physics, V4, P596

[2] ANALYSIS OF SLOTLINES AND MICROSTRIP LINES ON ANISOTROPIC SUBSTRATES [J].