Ferrites: magnetic and electric equivalent circuits and the complex permeability spectra

2016 ◽  
Author(s):  
N.C. Hamilton
Keyword(s):  
Complex Permeability ◽  
Equivalent Circuits

Circumferential permeability in nonmagnetostrictive amorphous wires

1996 ◽  
Vol 11 (10) ◽  
pp. 2486-2489 ◽  
Author(s):  
M. L. Sanchez ◽  
R. Valenzuela ◽  
M. Vazquez ◽  
A. Hernando
Keyword(s):  
Domain Wall ◽  
Current Amplitude ◽  
Complex Permeability ◽  
Equivalent Circuits ◽  
Magnetization Curves ◽  
Frequency Range ◽  
Impedance Response ◽  
Amorphous Wires ◽  
Circular Field ◽  
Magnetization Processes

Real and imaginary components of the impedance response on Co68.1Fe4.4B15Si12.5 amorphous as-cast wires were measured in the 100 Hz-100 kHz frequency range and 0.05–30 mA (RMS) current amplitude, at axial dc fields of 0 and 4800 A/m. From these data, plots of circumferential complex permeability as a function of circular field, as well as magnetization curves, were derived. Results are analyzed in terms equivalent circuits, which allows a resolution of domain wall and rotational contributions to the circumferential magnetization processes.

Wavelength Analysis Using Equivalent Circuits in a Fast and Slow Wave Waffle-Iron Ridge Guide

2017 ◽  
Vol E100.B (2) ◽  
pp. 219-226 ◽  
Author(s):  
Hideki KIRINO ◽  
Kazuhiro HONDA ◽  
Kun LI ◽  
Koichi OGAWA
Keyword(s):  
Slow Wave ◽  
Equivalent Circuits ◽  
Ridge Guide

Effect of Complex Permeability on Circuit Parameters of CPW with Magnetic Noise Suppression Sheet

2020 ◽  
Vol E103.B (9) ◽  
pp. 899-902
Author(s):  
Sho MUROGA ◽  
Motoshi TANAKA ◽  
Takefumi YOSHIKAWA ◽  
Yasushi ENDO
Keyword(s):  
Noise Suppression ◽  
Complex Permeability ◽  
Magnetic Noise

Equivalent Circuits of the 27.5 kV Electric Railway External Power Supply System

2020 ◽  
Vol 8 (8) ◽  
pp. 29-36
Author(s):  
Yeugene P. FIGURNOV ◽  
◽  
Yury I. ZHARKOV ◽  
Nataliya A. POPOVA ◽  
◽  
...  
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Equivalent Circuits ◽  
External Power ◽  
Electric Railway ◽  
External Power Supply

High-frequency equivalent circuits of junction-gate field-effect transistors

1970 ◽  
Vol 6 (18) ◽  
pp. 590
Author(s):  
P.U. Calzolari ◽  
S. Graffi ◽  
A. Mazzone
Keyword(s):  
High Frequency ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Equivalent Circuits

scholarly journals Effects of Recycled Fe2O3 Nanofiller on the Structural, Thermal, Mechanical, Dielectric, and Magnetic Properties of PTFE Matrix

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2332
Author(s):  
Ahmad Mamoun Khamis ◽  
Zulkifly Abbas ◽  
Raba’ah Syahidah Azis ◽  
Ebenezer Ekow Mensah ◽  
Ibrahim Abubakar Alhaji
Keyword(s):  
Electron Microscopy ◽  
High Energy ◽  
Filler Loading ◽  
Complex Permeability ◽  
X Ray Diffraction ◽  
Thermal Expansion Coefficients ◽  
Transmission Electron ◽  
Energy Ball ◽  
Hematite Fe2o3 ◽  
Ptfe Composites

The purpose of this study was to improve the dielectric, magnetic, and thermal properties of polytetrafluoroethylene (PTFE) composites using recycled Fe2O3 (rFe2O3) nanofiller. Hematite (Fe2O3) was recycled from mill scale waste and the particle size was reduced to 11.3 nm after 6 h of high-energy ball milling. Different compositions (5–25 wt %) of rFe2O3 nanoparticles were incorporated as a filler in the PTFE matrix through a hydraulic pressing and sintering method in order to fabricate rFe2O3–PTFE nanocomposites. The microstructure properties of rFe2O3 nanoparticles and the nanocomposites were characterized through X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and high-resolution transmission electron microscopy (HRTEM). The thermal expansion coefficients (CTEs) of the PTFE matrix and nanocomposites were determined using a dilatometer apparatus. The complex permittivity and permeability were measured using rectangular waveguide connected to vector network analyzer (VNA) in the frequency range 8.2–12.4 GHz. The CTE of PTFE matrix decreased from 65.28×10−6/°C to 39.84×10−6/°C when the filler loading increased to 25 wt %. The real (ε′) and imaginary (ε″) parts of permittivity increased with the rFe2O3 loading and reached maximum values of 3.1 and 0.23 at 8 GHz when the filler loading was increased from 5 to 25 wt %. A maximum complex permeability of 1.1−j0.07 was also achieved by 25 wt % nanocomposite at 10 GHz.

Sign in / Sign up

Export Citation Format

Share Document