scholarly journals On the path to novel magnetic cores: Electromagnetic simulations of amorphous magnetic microwires for inductive applications

AIP Advances ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 015211
Author(s):  
C. Johnson ◽  
X. Zhang ◽  
D. Li ◽  
R. P. del Real ◽  
S. Pakdelian ◽  
...  
Keyword(s):  
Magnetic Microwires ◽  
Electromagnetic Simulations ◽  
Magnetic Cores

Assessing the Feasibility of Using Amorphous Steel in the Magnetic Cores of Transformer-Rectifier Units for Aircrafts

2018 ◽  
Vol 5 (5) ◽  
pp. 39-44 ◽  
Author(s):  
Flur R. ISMAGILOV ◽  
◽  
Vyacheslav Ye. VAVILOV ◽  
Denis V. GUSAKOV ◽  
Anton A. MEDNOV ◽  
...  
Keyword(s):  
Magnetic Cores ◽  
Amorphous Steel

BLENDALLOY 25-7904

Alloy Digest ◽  
1972 ◽  
Vol 21 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Coercive Force ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Heat Treating ◽  
Magnetic Shielding ◽  
High Permeability ◽  
Magnetic Cores ◽  
Very High

Abstract BLENDALLOY 25-7904 is an 80% nickel-15% iron-5% molybdenum alloy having very high permeability and low coercive force for magnetic cores in such applications as transformer laminations, sensitive magnetic amplifiers and magnetic shielding. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-181. Producer or source: Spang Industries Inc..

scholarly journals Characterization of Tiled Architecture for C-Band 1-Bit Beam-Steering Transmitarray

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1259
Author(s):  
Dmitry Kozlov ◽  
Irina Munina ◽  
Pavel Turalchuk ◽  
Vitalii Kirillov ◽  
Alexey Shitvov ◽  
...  
Keyword(s):  
Communication Systems ◽  
Beam Steering ◽  
Unit Cell ◽  
Electromagnetic Simulations ◽  
Fifth Generation ◽  
Full Wave ◽  
Array Architecture ◽  
Modulation Pattern ◽  
Good Agreement

A new implementation of a beam-steering transmitarray is proposed based on the tiled array architecture. Each pixel of the transmitarray is manufactured as a standalone unit which can be hard-wired for specific transmission characteristics. A set of complementary units, providing reciprocal phase-shifts, can be assembled in a prescribed spatial phase-modulation pattern to perform beam steering and beam forming in a broad spatial range. A compact circuit model of the tiled unit cell is proposed and characterized with full-wave electromagnetic simulations. Waveguide measurements of a prototype unit cell have been carried out. A design example of a tiled 10 × 10-element 1-bit beam-steering transmitarray is presented and its performance benchmarked against the conventional single-panel, i.e., unibody, counterpart. Prototypes of the tiled and single-panel C-band transmitarrays have been fabricated and tested, demonstrating their close performance, good agreement with simulations and a weak effect of fabrication tolerances. The proposed transmitarray antenna configuration has great potential for fifth-generation (5G) communication systems.

scholarly journals Mid infrared polarization engineering via sub-wavelength biaxial hyperbolic van der Waals crystals

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Saurabh Dixit ◽  
Nihar Ranjan Sahoo ◽  
Abhishek Mall ◽  
Anshuman Kumar
Keyword(s):  
Room Temperature ◽  
Extinction Ratio ◽  
Polarization State ◽  
Van Der Waals ◽  
Photonic Devices ◽  
Mid Infrared ◽  
Precise Control ◽  
Electromagnetic Simulations ◽  
Frequency Regime ◽  
Sub Wavelength

AbstractMid-infrared (IR) spectral region is of immense importance for astronomy, medical diagnosis, security and imaging due to the existence of the vibrational modes of many important molecules in this spectral range. Therefore, there is a particular interest in miniaturization and integration of IR optical components. To this end, 2D van der Waals (vdW) crystals have shown great potential owing to their ease of integration with other optoelectronic platforms and room temperature operation. Recently, 2D vdW crystals of $$\alpha$$ α -$$\hbox {MoO}_{3}$$ MoO 3 and $$\alpha$$ α -$$\hbox {V}_2 \hbox {O}_5$$ V 2 O 5 have been shown to possess the unique phenomenon of natural in-plane biaxial hyperbolicity in the mid-infrared frequency regime at room temperature. Here, we report a unique application of this in-plane hyperbolicity for designing highly efficient, lithography free and extremely subwavelength mid-IR photonic devices for polarization engineering. In particular, we show the possibility of a significant reduction in the device footprint while maintaining an enormous extinction ratio from $$\alpha$$ α -$$\hbox {MoO}_{3}$$ MoO 3 and $$\alpha$$ α -$$\hbox {V}_2$$ V 2 $$\hbox {O}_5$$ O 5 based mid-IR polarizers. Furthermore, we investigate the application of sub-wavelength thin films of these vdW crystals towards engineering the polarization state of incident mid-IR light via precise control of polarization rotation, ellipticity and relative phase. We explain our results using natural in-plane hyperbolic anisotropy of $$\alpha$$ α -$$\hbox {MoO}_{3}$$ MoO 3 and $$\alpha$$ α -$$\hbox {V}_2$$ V 2 $$\hbox {O}_5$$ O 5 via both analytical and full-wave electromagnetic simulations. This work provides a lithography free alternative for miniaturized mid-infrared photonic devices using the hyperbolic anisotropy of $$\alpha$$ α -$$\hbox {MoO}_{3}$$ MoO 3 and $$\alpha$$ α -$$\hbox {V}_2$$ V 2 $$\hbox {O}_5$$ O 5 .

Collection of CAD human head models for electromagnetic simulations and their applications

2019 ◽  
Vol 5 (6) ◽  
pp. 067005 ◽  
Author(s):  
Aung Thu Htet ◽  
Edward H Burnham ◽  
Gregory M Noetscher ◽  
Dung Ngoc Pham ◽  
Aapo Nummenmaa ◽  
...  
Keyword(s):  
Human Head ◽  
Electromagnetic Simulations

Experimental determination of limit angle of helical anisotropy in amorphous magnetic microwires

2009 ◽  
Vol 321 (7) ◽  
pp. 803-805 ◽  
Author(s):  
A. Chizhik ◽  
A. Zhukov ◽  
J.M. Blanco ◽  
J. Gonzalez ◽  
P. Gawronski
Keyword(s):  
Experimental Determination ◽  
Magnetic Microwires ◽  
Helical Anisotropy
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