skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Tunable permittivity and permeability of low loss Z + Y-type ferrite composites for ultra-high frequency applications

Abstract

A series of Z-type and Y-type ferrite composites with various phase fractions were studied for their RF properties including the measurement of permittivity to permeability spectra over a frequency range of 0.1–10 GHz. Phase identification of the ferrite composites' constituents was determined by X-ray diffraction. An effective medium approximation was used to predict the magnetic and dielectric behavior of the composites. The experiments indicated that the composite having 75 vol. % of Z-type ferrite demonstrated a permeability of ∼12 with a nearly equivalent permittivity, yielding a ratio (μ′/ε′) of 0.91 at a frequency range from 0.55 to 0.75 GHz. The dielectric loss (i.e., tan δ{sub ε}) and magnetic loss (i.e., tan δ{sub μ}) were measured to be lower than 0.08 at f = 0.1–1 GHz and 0.29 at f = 0.1–0.7 GHz, respectively. Furthermore, the loss factors, as tan δ{sub ε}/ε′ and tan δ{sub μ}/μ′, were calculated to be 0.003 and 0.02 at 0.65 GHz, respectively.

Authors:
; ; ;  [1]; ;  [2];  [1];  [3]
  1. Center for Microwave Magnetic Materials and Integrated Circuits, and Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115 (United States)
  2. School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074 (China)
  3. (China)
Publication Date:
OSTI Identifier:
22410156
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 117; Journal Issue: 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; APPROXIMATIONS; COMPOSITE MATERIALS; DIELECTRIC MATERIALS; FERRITES; FREQUENCY DEPENDENCE; GHZ RANGE; PERMEABILITY; PERMITTIVITY; RELAXATION LOSSES; X-RAY DIFFRACTION

Citation Formats

Su, Zhijuan, Hu, Bolin, Chen, Yajie, E-mail: y.chen@neu.edu, Harris, Vincent G., Li, Qifan, Feng, Zekun, Wang, Xian, and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074. Tunable permittivity and permeability of low loss Z + Y-type ferrite composites for ultra-high frequency applications. United States: N. p., 2015. Web. doi:10.1063/1.4916557.
Su, Zhijuan, Hu, Bolin, Chen, Yajie, E-mail: y.chen@neu.edu, Harris, Vincent G., Li, Qifan, Feng, Zekun, Wang, Xian, & School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074. Tunable permittivity and permeability of low loss Z + Y-type ferrite composites for ultra-high frequency applications. United States. doi:10.1063/1.4916557.
Su, Zhijuan, Hu, Bolin, Chen, Yajie, E-mail: y.chen@neu.edu, Harris, Vincent G., Li, Qifan, Feng, Zekun, Wang, Xian, and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074. Thu . "Tunable permittivity and permeability of low loss Z + Y-type ferrite composites for ultra-high frequency applications". United States. doi:10.1063/1.4916557.
@article{osti_22410156,
title = {Tunable permittivity and permeability of low loss Z + Y-type ferrite composites for ultra-high frequency applications},
author = {Su, Zhijuan and Hu, Bolin and Chen, Yajie, E-mail: y.chen@neu.edu and Harris, Vincent G. and Li, Qifan and Feng, Zekun and Wang, Xian and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074},
abstractNote = {A series of Z-type and Y-type ferrite composites with various phase fractions were studied for their RF properties including the measurement of permittivity to permeability spectra over a frequency range of 0.1–10 GHz. Phase identification of the ferrite composites' constituents was determined by X-ray diffraction. An effective medium approximation was used to predict the magnetic and dielectric behavior of the composites. The experiments indicated that the composite having 75 vol. % of Z-type ferrite demonstrated a permeability of ∼12 with a nearly equivalent permittivity, yielding a ratio (μ′/ε′) of 0.91 at a frequency range from 0.55 to 0.75 GHz. The dielectric loss (i.e., tan δ{sub ε}) and magnetic loss (i.e., tan δ{sub μ}) were measured to be lower than 0.08 at f = 0.1–1 GHz and 0.29 at f = 0.1–0.7 GHz, respectively. Furthermore, the loss factors, as tan δ{sub ε}/ε′ and tan δ{sub μ}/μ′, were calculated to be 0.003 and 0.02 at 0.65 GHz, respectively.},
doi = {10.1063/1.4916557},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 17,
volume = 117,
place = {United States},
year = {2015},
month = {5}
}