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Journal articles on the topic 'Microwave ferrite device'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Zhou, Hao Miao, Fang Li, Juan Hu Deng, and Jing Wei. "The Electric Field Tuning Characteristics in the Strain-Mediated Ferrite-Piezoelectric Laminated Magnetoelectric Microwave Devices." Advanced Materials Research 571 (September 2012): 569–73. http://dx.doi.org/10.4028/www.scientific.net/amr.571.569.

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This research focused on the numerical simulation of electric field tuning characteristics of the magnetoelectric microwave devices with the core of the laminated ferrite-piezoelectric magnetoelectric materials. Firstly, we proposed an expression for the shift of ferromagnetic resonance (FMR) frequency tuning by external electric field in piezoelectric layer, then substituted the expression of magnetoelectic (ME) constant into this expression, which can convert the electric field tuning on the laminated magnetoelectric materials into the equivalent magnetic field tuning on the ferrite layer. S

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2

Singh, Lovdeep, Jagjeet Malhotra, Charanjeet Singh, S. Bindra Narang, and Madhu Chandra. "Investigation of microwave and electrical characteristics of Co–Zr substituted M-type Ba–Sr hexagonal ferrite." Materials Science-Poland 33, no. 2 (2015): 335–39. http://dx.doi.org/10.1515/msp-2015-0051.

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AbstractMicrowave characteristics of M-type hexagonal ferrite, Ba0.5Sr0.5CoxZrxFe(12-2x)O19 (x = 0.0 to 1.0 in steps of 0.2), have been investigated as a function of frequency and substitution at X-band. The microwave absorption has been investigated using absorber testing device method. The static I-V characteristics have been studied as a function of substitution. The results show maximum microwave absorption at higher substitution. The static current exhibits ohmic behavior from 0 to 3 V and exponential trend from 3 to 4.8 V. The microstructure influences both microwave and electrical prope

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3

Sharma, Rohit, Prashant Thakur, Pankaj Sharma, and Vineet Sharma. "Mn2+ Doped Mg–Zn Ferrite Nanoparticles for Microwave Device Applications." IEEE Electron Device Letters 39, no. 6 (2018): 901–4. http://dx.doi.org/10.1109/led.2018.2829926.

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4

Savu, Sorin Vasile. "Microwave Differential Thermal Analysis Technique of the Fe₂O₃+BaCO₃ Homogeneous Mixture." Advanced Materials Research 1036 (October 2014): 24–29. http://dx.doi.org/10.4028/www.scientific.net/amr.1036.24.

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The microwave differential thermal analysis (MW-DTA) is a new procedure to evaluate the materials, barium ferrite type M in this paper, according to the phenomena appeared during the material heating. The paper presents a new evaluation technique which is faster and with low energy consumption. The microwaves are used to heat the material, two infrared pyrometers for monitoring the temperatures on the material surface and a temperature regulator where the data are recorded for evaluation. The material, a homogeneous mixture of Fe2O3+BaCO3, is a ceramic material with good absorbance properties,

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5

Monzon, Cesar. "A non-structured subwavelength near-field microwave lens." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 466, no. 2114 (2009): 539–48. http://dx.doi.org/10.1098/rspa.2009.0381.

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This paper proposes a super resolution near-field radio frequency focusing device consisting of a thin planar layer of a particular ferrite characterized by negative permeability. Radiation focusing is investigated and it is established that the resulting non-structured lens is characterized by a resolving power 2–3 times the lens thickness, regardless of the wavelength. The resulting near field lens can be used as a magnetic field device for imaging inside non-magnetic objects.

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6

YEH, W. J., A. R. ABUZIR, and R. PETRUS. "FABRICATION OF PERPENDICULAR BA-FERRITE FILMS BY MAGNETRON SPUTTERING WITH IN SITU PROCESS." International Journal of Modern Physics B 19, no. 01n03 (2005): 559–61. http://dx.doi.org/10.1142/s0217979205029031.

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Barium ferrite films (BaFe12O19) with perpendicular orientation are attractive candidates for microwave device applications and ultrahigh density perpendicular recording. An in situ annealing process is developed for the deposition of Barium ferrite films by rf magnetron sputtering. The substrates are held at temperatures of 550 to 600°C during the sputtering. After the deposition, the substrate temperature is immediately raised to 900°C in the vacuum chamber in Ar and O2 atmosphere. c-axis orientated films are obtianed. The films exhibit coercivity value of 4270 Oe and squareness of 0.87 in p

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7

Wagner, Dmitry V., Olga Dotsenko, and Olga A. Ulyanova. "Electromagnetic Properties of W – Hexaferrites Composites with Magnetic Texture." Advanced Materials Research 1040 (September 2014): 29–33. http://dx.doi.org/10.4028/www.scientific.net/amr.1040.29.

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In this article the possibility of production of composite materials with magnetic texture are discussed. For texturing of magnetic polymer materials the device was made. The W-type hexaferrites were synthesized using a standard ceramic technique. Magnetic materials with a texture based on barium ferrite were obtained. The electromagnetic properties of texture and non texture composites were measured in microwave. It was shown, that imaginary permeability of an isotropic sample 1.3 times more that sample with texture in a frequency range of 0.5 – 4 GHz.

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8

Hasan, Intan Helina, Mohd Nizar Hamidon, Alyani Ismail, et al. "Nickel zinc ferrite thick film with linseed oil as organic vehicle for microwave device applications." Materials Chemistry and Physics 236 (October 2019): 121790. http://dx.doi.org/10.1016/j.matchemphys.2019.121790.

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9

Jalli, Jeevan, Yang-Ki Hong, Seok Bae та ін. "Growth and characterization of 144 μm thick barium ferrite single crystalline film for microwave device application". Journal of Applied Physics 105, № 7 (2009): 07A511. http://dx.doi.org/10.1063/1.3062824.

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10

Wang, Yu, Yingli Liu, Jie Li, Qian Liu, Huaiwu Zhang, and Vincent G. Harris. "LTCC processed CoTi substituted M-type barium ferrite composite with BBSZ glass powder additives for microwave device applications." AIP Advances 6, no. 5 (2016): 056410. http://dx.doi.org/10.1063/1.4945041.

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11

PENCHAL REDDY, M., M. VENKATA RAMANA, N. RAMA MANOHAR REDDY, et al. "STRUCTURAL, ELECTRICAL AND MAGNETIC CHARACTERIZATION OF Ni–Cu–Zn SPINEL FERRITES." Modern Physics Letters B 25, no. 03 (2011): 211–22. http://dx.doi.org/10.1142/s0217984911025626.

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Ni – Cu – Zn ferrite materials have been extensively used in multilayer chip inductors because of their remarkable properties at higher frequencies. In the present work, single phase Ni 0.35 Cu 0.05 Zn 0.60 Fe 1.98 O 4-δ ferrite, has been prepared by microwave sintered (MS) method. In comparison with the conventional sintering method (CS), the sintering temperature and time for this MS method were significantly reduced to 30 min and 950°C from 5 h and 1250°C for the CS process. The frequency dependence of the dielectric properties such as dielectric constant (ε'), dielectric loss ( tan δ) were

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12

Polevoy, S., G. Kharchenko, S. Tarapov, et al. "A magnetoactive metamaterial based on a structured ferrite." RADIOFIZIKA I ELEKTRONIKA 26, no. 1 (2021): 28–34. http://dx.doi.org/10.15407/rej2021.01.028.

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Subject and Purpose. The use of spatially structured ferromagnets is promising for designing materials with unique predetermined electromagnetic properties welcome to the development of magnetically controlled microwave and optical devices. The paper addresses the electromagnetic properties of structured ferrite samples of a different shape (spatial geometry) and is devoted to their research by the method of electron spin resonance (ESR). Methods and methodology. The research into magnetic properties of structured ferrite samples was performed by the ESR method. The measurements of transmissio

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13

Dar, M. Abdullah, Kowsar Majid, Mohd Hanief Najar, R. K. Kotnala, and Jyoti Shah. "Synthesis and characterization of Li 0.5 Fe 2.5-x Gd x O 4 ferrite nano-particles as a potential candidate for microwave device applications." Materials & Design 90 (January 2016): 443–52. http://dx.doi.org/10.1016/j.matdes.2015.10.151.

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14

Jain, K. K., and Pran Kishan. "Microwave Ferrite Devices." IETE Technical Review 14, no. 6 (1997): 373–86. http://dx.doi.org/10.1080/02564602.1997.11416700.

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15

Darwish, Moustafa A., Alex V. Trukhanov, Oleg S. Senatov, et al. "Investigation of AC-Measurements of Epoxy/Ferrite Composites." Nanomaterials 10, no. 3 (2020): 492. http://dx.doi.org/10.3390/nano10030492.

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A pure ferrite and epoxy samples as well as the epoxy/ferrite composites with different 20 wt.%, 30 wt.%, 40 wt.%, and 50 wt.% weight ferrite contents have been prepared by the chemical co-precipitation method. AC-conductivity and dielectric properties such as the dielectric constant and dielectric loss of the prepared samples have been studied. The obtained results showed that the samples had a semiconductor behavior. The dielectric constant of the composites has been calculated theoretically using several models. For the composite sample that contains 20 wt.% of ferrites, these models give s

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16

Ren, Gui Hua, and Zhi Song Yu. "Synthesis of Monodisperse Fe₃O₄ and MnFe₂O₄ Nanospheres by Using a Solvothermal Reduction Method." Solid State Phenomena 181-182 (November 2011): 393–96. http://dx.doi.org/10.4028/www.scientific.net/ssp.181-182.393.

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The spinel ferrites, MFe2O4(where M=Fe, Mn, Co, Ni, Zn, Mg, etc.) have attracted considerable interest during the last few decades due to their potential applications in high frequency transformers, filters, high density storage devices, and microwave applications. In the latest several years, many synthesis technologies such as sol-gel, auto-combustion, thermal decomposition methods and hydrothermal reaction have been developed to prepare spinel ferrite nanoparticles. In this paper, the spinel ferrites Fe3O4and MnFe2O4nanoparticles were synthesized by using a solvothermal reduction method. X-

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17

Zezyulina, Polina A., Dmitry A. Petrov, Konstantin N. Rozanov, et al. "Study of the Static and Microwave Magnetic Properties of Nanostructured BaFe12−xTixO19." Coatings 10, no. 8 (2020): 789. http://dx.doi.org/10.3390/coatings10080789.

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The effect of Ti substitution on the microwave and magnetostatic properties of nanostructured hexagonal BaFe12−xTixO19 ferrite composites is studied. The microwave permeability is measured in the frequency range of 0.1–22 GHz by a coaxial technique. An analysis of the magnetostatic data is made by the law of approach to saturation. The ferrimagnetic resonance frequencies calculated from the magnetostatic data are consistent with those obtained from the microwave measurements. The natural ferrimagnetic resonance frequencies are located in the frequency range of 15 to 22 GHz, depending on the su

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18

Tatarenko, Alexander, Darya Snisarenko, and Mirza Bichurin. "Modeling of magnetoelectric microwave devices." Facta universitatis - series: Electronics and Energetics 30, no. 3 (2017): 285–93. http://dx.doi.org/10.2298/fuee1703285t.

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The possibility of computer modeling implementation of electrically controlled magnetoelectric (ME) microwave devices is considered. The computer modeling results of different structures of ME microwave devices based on layered ferrite-piezoelectric structure formed on the slot line, microstrip line and coplanar waveguide are offered. Results are reported as frequency dependencies of insertion losses of ME devices.

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19

Tatarenko, A. S., and M. I. Bichurin. "Microwave Magnetoelectric Devices." Advances in Condensed Matter Physics 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/286562.

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Tunable microwave magnetoelectric devices based on layered ferrite-ferroelectric structures are described. The theory and experiment for attenuator, band-pass filter and phase shifter are presented. Tunability of the ME devices characteristics can be executed by application of an electric field. This electric tuning is relatively fast and is not power-consuming. The attenuator insertion losses vary from 26 dB to 2 dB at frequency 7251 MHz. The tuning range of 25 MHz of band-pass filter at frequency 7360 MHz was obtained. A maximum phase shift of 30–40 degree at the frequency region 6–9 GHz was

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20

Mallmann, E. J. J., A. S. B. Sombra, J. C. Goes, and P. B. A. Fechine. "Yttrium Iron Garnet: Properties and Applications Review." Solid State Phenomena 202 (May 2013): 65–96. http://dx.doi.org/10.4028/www.scientific.net/ssp.202.65.

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Due to a fast progress in the development of communication systems, the dielectric and magnetic ceramics (ferrites) have become attractive to be used in devices. Although the ferrites of the spinel type were the first material to be used in the microwave range, garnets have smaller dielectric losses and, therefore, are chosen for many applications. High demands for modern electric applications in magnetic materials results in new techniques and products being permanently studied and researched, with a consequent appearance of new solutions for a wide applications series. This work presents the

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21

Rodrigue, G. P. "A generation of microwave ferrite devices." Proceedings of the IEEE 76, no. 2 (1988): 121–37. http://dx.doi.org/10.1109/5.4389.

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22

Pereira, F. M. M., and A. S. B. Sombra. "A Review on Ba_xSr_1-xFe₁₂O₁₉ Hexagonal Ferrites for use in Electronic Devices." Solid State Phenomena 202 (May 2013): 1–64. http://dx.doi.org/10.4028/www.scientific.net/ssp.202.1.

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The Ferrite term is used to refer to all magnetic oxides containing iron as major metallic component which has great to technological applications because of their ferromagnetic and insulating properties at room temperature. Among such ferrites, the hexagonal ones (hexaferrites) have long been used for permanent magnets and are of interest for microwave applications. The hexaferrite M-type has a structure built up from the S blocks interposed by the R block and are symbolically described as RSR*S*. In the last decades there has been great interest in the hexaferrites M-Type for applications as

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23

SINGH, M., and S. P. SUD. "Mg–Mn–Al FERRITES FOR HIGH FREQUENCY APPLICATIONS." Modern Physics Letters B 14, no. 14 (2000): 531–37. http://dx.doi.org/10.1142/s0217984900000677.

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The effect of substitution of nonmagnetic Al 3+ ions on the electrical and magnetic properties of Mg–Mn ferrites was studied in the ferrite series Mg 0.9 Mn 0.1 Al x Fe 2-x O 4 where x varied from 0–0.5 in steps of 0.1. The incorporation of Al 3+ ions in place of Fe 3+ ions results in a decrease of the lattice parameter owing to the smaller size of the substituted ions. The increase in dc resistivity has been observed at the expense of the deterioration of magnetic properties. A significant reduction in the values of the initial permeability, saturation magnetization and Curie temperature has

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24

Yao, Mouteng, Yaojin Li, Bian Tian, et al. "Freestanding single-crystal Ni0.5Zn0.5Fe2O4 ferrite membranes with controllable enhanced magnetic properties for flexible RF/microwave applications." Journal of Materials Chemistry C 8, no. 47 (2020): 17099–106. http://dx.doi.org/10.1039/d0tc04342g.

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25

Schloemann, Ernst. "Advances in ferrite microwave materials and devices." Journal of Magnetism and Magnetic Materials 209, no. 1-3 (2000): 15–20. http://dx.doi.org/10.1016/s0304-8853(99)00635-6.

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26

Dionne, G. F., D. E. Oates, D. H. Temme, and J. A. Weiss. "Ferrite-superconductor devices for advanced microwave applications." IEEE Transactions on Microwave Theory and Techniques 44, no. 7 (1996): 1361–68. http://dx.doi.org/10.1109/22.508241.

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27

Chizhov, V. V., A. A. Zvyagintsev, and A. V. Strizhachenko. "Checking of Ferrite Element Parameters in Microwave Devices." Telecommunications and Radio Engineering 68, no. 15 (2009): 1361–67. http://dx.doi.org/10.1615/telecomradeng.v68.i15.50.

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28

Glass, H. L. "Ferrite films for microwave and millimeter-wave devices." Proceedings of the IEEE 76, no. 2 (1988): 151–58. http://dx.doi.org/10.1109/5.4391.

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29

Kuanr, Bijoy K., V. Veerakumar, K. Lingam, et al. "Size dependent microwave properties of ferrite nanoparticles: Application to microwave devices." Journal of Applied Physics 105, no. 7 (2009): 07B522. http://dx.doi.org/10.1063/1.3073836.

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30

Ionescu, Daniela, and Gabriela Apreotesei. "Wave absorption control in the new designed photonic metamaterials with artificial opal." MATEC Web of Conferences 178 (2018): 04004. http://dx.doi.org/10.1051/matecconf/201817804004.

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Photonic metamaterials consisting of artificial opal with magnetic inclusions were considered, used in controllable microwave electronic devices. The analyzed structures consist of matrices of SiO2 nanospheres (diameter 200 - 400 nm) with included clusters of ferrite spinels (MnxCo0.6-xZn0.4Fe2O4, NixCo0.6-xZn0.4Fe2O4, LaxCo0.6-xZn0.4Fe2O4, NdxCo0.6-xZn0.4Fe2O4) in interspherical nanospacing (4 ÷ 7% concentration). The ellipsoidal clusters are polycrystalline, with spatial dimensions of 20 – 30 nm and grains of 5 – 12 nm. A controlled wave absorption was obtained in these high inductivity stru

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31

Qassym, Lilia, Gérard Cibien, Richard Lebourgeois, Gilles Martin, and Dorothée Colson. "New Ferrimagnetic Garnets for LTCC-Technology Circulators." Journal of Microelectronics and Electronic Packaging 14, no. 2 (2017): 51–55. http://dx.doi.org/10.4071/imaps.358290.

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Abstract Yttrium iron garnet-based ferrites are used in nonreciprocal devices like microwave circulators and isolators. The low dielectric and magnetic losses of those materials provide the required properties. The main drawbacks of circulators are their size and cost, due to complex mechanical assembling of the different materials. To simplify the complex manufacturing process, a possible solution would be to adapt the different materials to a common low temperature cofired ceramic (LTCC) process: the circulators would be produced with an additive multilayer process. We showed that cationic s

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32

Qassym, Lilia, Gérard Cibien, Richard Lebourgeois, Gilles Martin, and Dorothée Colson. "New ferrimagnetic garnets for LTCC-technology circulators." International Symposium on Microelectronics 2016, no. 1 (2016): 000586–90. http://dx.doi.org/10.4071/isom-2016-thp24.

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Abstract Yttrium Iron Garnet based ferrites are used in non-reciprocal devices like microwave circulators and isolators. The low dielectric and magnetic losses of those materials provide the required properties. The main drawbacks of circulators are their size and cost, due to complex mechanical assembling of the different materials. In order to simplify this complex manufacturing process, a possible solution would be to adapt the different materials to a common LTCC (Low Temperature Co-fired Ceramics) process: the circulators would be produced with an additive multilayer process. We showed th

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33

Diniz, Verônica C. S., Débora A. Vieira, Ruth Herta Goldsmith Aliaga Kiminami, Daniel Cornejo, and Ana Cristina Figueiredo de Melo Costa. "Sintering of Ni-Zn Ferrite by Microwave Energy." Materials Science Forum 727-728 (August 2012): 977–81. http://dx.doi.org/10.4028/www.scientific.net/msf.727-728.977.

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This paper proposes to assess the sintering of Ni-Zn ferrites synthesized by combustion reaction in advance to procure materials for applications as soft magnetic devices. The samples used for sintering have different morphological characteristics and were previously synthesized by microwave energy. The samples were uniaxially pressed and sintered in a microwave oven at 1200°C/2h with a heating rate of 5°C/min, and characterized by XRD, SEM and magnetic measurements. The results show that for all samples have the formation of Ni-Zn phase and traces hematite as secondary phase. The resulting mi

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34

Saita, Hitoshi, Yi Fang, Atsuyuki Nakano, et al. "Microwave Sintering Study of NiCuZn Ferrite Ceramics and Devices." Japanese Journal of Applied Physics 41, Part 1, No. 1 (2002): 86–92. http://dx.doi.org/10.1143/jjap.41.86.

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35

Bobyl, A., R. Suris, S. Karmanenko, et al. "The ferrite/superconductor layered structure for tunable microwave devices." Physica C: Superconductivity 372-376 (August 2002): 508–10. http://dx.doi.org/10.1016/s0921-4534(02)00734-7.

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36

Bagdasarian, Alexander, Mikhail Samoylovich, Alpik Mkrtchyan, et al. "Technology of Synthesis of Opal Matrix Metamaterials." Advanced Materials Research 1084 (January 2015): 58–60. http://dx.doi.org/10.4028/www.scientific.net/amr.1084.58.

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This work describes the technology of growing crystal metamaterials spinel ferrites. Metamaterials is one of the most promising classes of materials for use in optical devices in the microwave range and features, which can be used for creation of controlled attenuators, phase shifters, and other devices.

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37

Silva Neto, Lauro Paulo, J. O. Rossi, P. A. G. Dias, and J. J. Barroso. "Frequency Characterization of Ferrite Beads in the Microwave Range for Nonlinear Applications." Materials Science Forum 802 (December 2014): 552–57. http://dx.doi.org/10.4028/www.scientific.net/msf.802.552.

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Ferrite beads are ferromagnetic materials that exhibit a small inductance at low frequencies, becoming resistive at high frequencies. These devices are used as low pass filters for reducing electromagnetic interference (EMI) in communications and power electronics because the resistive losses attenuate the undesired frequencies. As ferrite beads have a nonlinear behavior with current and frequency they have been used in nonlinear transmission lines (NLTLs) for high power microwave generation in space and defense applications. In this work, high frequency ferrite beads are characterized in the

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Anwar, Asima, Muhammad Asif Yousuf, Bashir Tahir, et al. "New Er3+-substituted NiFe2O4 Nanoparticles and their Nano-heterostructures with Graphene for Visible Light-Driven Photo-catalysis and other Potential Applications." Current Nanoscience 15, no. 3 (2019): 267–78. http://dx.doi.org/10.2174/1573413714666180911101337.

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Background: Spinel ferrites have great scientific and technological significance because of their easy manufacturing, low cost and outstanding electrical and magnetic properties. Nickel ferrite nanoparticles are ferromagnetic material with an inverse spinel structure. They show remarkable magnetic properties and hence have a wide range of applications in magnetic storage devices, microwave devices, gas sensors, telecommunication, drug delivery, catalysis and magnetic resonance imaging. Objective: The aim and objective of this research article is to study the relative effect of NiErxFe2-xO4 nan

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Zhou, Hao Miao, Qing Chen, Juan Hu Deng, and Ying Xiao. "Theoretical Model of Electric Field Tunable FMR Frequency of Magnetoelectric Tri-Layered Structure." Applied Mechanics and Materials 303-306 (February 2013): 16–21. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.16.

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To study the magnetic-electrical-mechanical coupling mechanism of microwave ME (magnetoelectric) tri-layered structures, we proposed a theoretical model of electric tunable FMR (Ferromagnetic Resonance) frequency shift for bias magnetic field in different directions through the theory of Smith-Beljers and free energy density of ferrite. A deformation produced by the applied electric field called strain could be obtained through the theory of classical laminated plate. This model effectively predicts the stress of laminated structure increases when the piezoelectric coefficient increases, the s

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40

Liu, Ming, and Nian X. Sun. "Voltage control of magnetism in multiferroic heterostructures." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2009 (2014): 20120439. http://dx.doi.org/10.1098/rsta.2012.0439.

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Electrical tuning of magnetism is of great fundamental and technical importance for fast, compact and ultra-low power electronic devices. Multiferroics, simultaneously exhibiting ferroelectricity and ferromagnetism, have attracted much interest owing to the capability of controlling magnetism by an electric field through magnetoelectric (ME) coupling. In particular, strong strain-mediated ME interaction observed in layered multiferroic heterostructures makes it practically possible for realizing electrically reconfigurable microwave devices, ultra-low power electronics and magnetoelectric rand

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41

Roohani, Ebrahim, Hadi Arabi, and Reza Sarhaddi. "Influence of nickel substitution on crystal structure and magnetic properties of strontium ferrite preparation via sol-gel auto-combustion route." International Journal of Modern Physics B 32, no. 01 (2018): 1750271. http://dx.doi.org/10.1142/s021797921750271x.

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In this research, SrFe[Formula: see text]Ni[Formula: see text]O[Formula: see text] (x [Formula: see text] 0 − 1) hexagonal ferrites were prepared by sol-gel auto-combustion method. Effect of Ni substitution on structural, morphological and magnetic properties of nanoparticles was investigated by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), Transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM), respectively. The XRD results confirmed that all samples with x [Formula: see text] 0.5 have single phase M-type strontium ferrite structure, whereas for the SrFe

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42

Borodin, Vladimir N., Valery A. Kozlov, Evgeny A. Mikhalitsyn, and Alexander V. Sorokin. "Computer aided design of ferrite lumped element circulators." Physics of Wave Processes and Radio Systems 23, no. 4 (2021): 74–84. http://dx.doi.org/10.18469/1810-3189.2020.23.4.74-84.

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The results of integrity of narrowband and wideband lumped element circulators design methodology to the computer aided design system of microwave devices AWR Microwave Office are presented in the article. The calculation method of narrow band circulators circuits which consist of serious and shunt tuning capacities is investigated. The simple and visual method of wideband ferrite isolators optimize design based on circulation impedance calculation is described here. The results of design of the ultra wideband circulator with shunt capacity, serious resonant matching circuit and serious resona

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43

Qindeel, Rabia, Norah H. Alonizan, Eman A. Alghamdi, and Manal A. Awad. "Synthesis and characterization of spinel ferrites for microwave devices." Journal of Sol-Gel Science and Technology 97, no. 3 (2021): 593–99. http://dx.doi.org/10.1007/s10971-021-05470-9.

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BHATTACHARYYA, AMITAVA, and MANGALA JOSHI. "CO-DEPOSITION OF IRON AND NICKEL ON NANOGRAPHITE FOR MICROWAVE ABSORPTION THROUGH FLUIDIZED BED ELECTROLYSIS." International Journal of Nanoscience 10, no. 04n05 (2011): 1125–30. http://dx.doi.org/10.1142/s0219581x11009490.

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Conventional radar absorbent materials (RAM) such as iron ball (carbonyl iron) and carbon black prove less effective against modern homing devices specially those which operate at low frequency microwaves. Hybrid nanoparticles based on ferrite are found to be more suitable for such applications. Iron (Fe) coated carbon nanoparticles can also be successfully used for conducting, sensing and electromagnetic shielding or radar absorbent applications. Among the carbon nanoparticles, nanographite has its potential for such applications because of its conductivity, nanomagnetism and layered structur

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Lee, Jin‐Fa, and Raj Mittra. "Analysis of microwave ferrite devices by using the finite‐element method." Journal of Applied Physics 69, no. 8 (1991): 5032–34. http://dx.doi.org/10.1063/1.348167.

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Das, Jaydip, Boris A. Kalinikos, Arkajit Roy Barman, and Carl E. Patton. "Multifunctional dual-tunable low loss ferrite-ferroelctric heterostructures for microwave devices." Applied Physics Letters 91, no. 17 (2007): 172516. http://dx.doi.org/10.1063/1.2802577.

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Plonis, Darius. "GYROTROPIC WAVEGUIDES ANALYSIS." Mokslas - Lietuvos ateitis 2, no. 1 (2010): 117–21. http://dx.doi.org/10.3846/mla.2010.026.

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An algorithm and program in MATLAB® for the dispersions characteristics calculation in wide frequency range 15–100 GHz was created. We calculated and analyzed in ferrite and semiconductor waveguides, then they are longitudinally magnetized, also we analyzed main mode HE11 and higher modes EH11 and HE12 dispersion characteristics. We analyzed semiconductor p-Ge, p-GaAs waveguides and compared gyromagnetic and gyroelectric waveguides bandwidth with dielectrical layer. We decided that outer dielectrical layer changed waveguide working frequency range. We draw conclusion that it can be used for ma

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Schloemann, E. "Radiation loss in microwave devices based on easy-plane ferrites." IEEE Transactions on Magnetics 37, no. 4 (2001): 2386–88. http://dx.doi.org/10.1109/20.951180.

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Afsar, Mohammed N., and Wei Quan. "Nano-Size Hexagonal Ferrites for Microwave and Millimeter-Wave Devices." IEEE Transactions on Magnetics 56, no. 4 (2020): 1–9. http://dx.doi.org/10.1109/tmag.2019.2962040.

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Wang, Yunqi, Flynn Castles, and Patrick S. Grant. "3D Printing of NiZn ferrite/ABS Magnetic Composites for Electromagnetic Devices." MRS Proceedings 1788 (2015): 29–35. http://dx.doi.org/10.1557/opl.2015.661.

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ABSTRACT3D printing is a versatile fabrication method that offers the potential to realize complex 3D devices with metamaterial characteristics in a single process directly from a computer aided design. However, the range of functional devices that might be realized by 3D printing is limited by the current range of materials that are compatible with a given 3D printing process: fused deposition modelling (FDM), which is a widely used 3D printing method, typically employs only common thermoplastics. Here we describe the development of a magnetic feedstock based on polymer-ferrite composite that

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