76 resources related to Microwave Magnetics
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No organizations are currently tagged "Microwave Magnetics"
INTERMAG is the premier conference on all aspects of applied magnetism and provides a range of oral and poster presentations, invited talks and symposia, a tutorial session, and exhibits reviewing the latest developments in magnetism.
The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.
The conference is part of the IMS Microwave Week and focus on advanced in state-of-the-art in the field of RF integrated circuits. Topics cover RFIC circuits, systems engineering, design methodology, RF modeling and CAD simulation, RFIC technologies, device technologies, fabrication, testing, reliability, packaging, and modules to support RF applications in areas such as Wireless Cellular and Connectivity, Low Power Transceivers, Receiver Sub-Systems and Circuits, Mixed-Signal RF and Data Converters, Reconfigurable and Tunable Front-Ends, Transmitter Sub-Systems and Power Amplifiers, Oscillators, Frequency Synthesis, Millimeter- and Sub-Millimeter Wave Systems, and High-Speed Data Transceivers.
ICMMT2018 is intended to provide a broad international forum and nice opportunity for the scientists and engineers to present their new ideas and exchange information on research.
2008 International Conference of Recent Advances in Microwave Theory and Applications (Microwave-08)
The Microwave 2008 conference aims to bring together scientists, engineers, technologists and researchers working in academic institutes, research laboratories and centers and industries on a common platform to interact with one another and to provide an opportunity to present their results as well as to exchange information and understanding on recent advancements in the field of Microwave Technique and Applications.
No periodicals are currently tagged "Microwave Magnetics"
IRE Transactions on Microwave Theory and Techniques, 1960
Resonance experiments have been performed at X-band on spherical samples of polycrystalline yttrium garnet, yttrium-gadolinium garnet, yttrium-holmium garnet and nickel-cobalt ferrite. The RF field strength extended up to 60 Oersted. In the case of yttrium garnet the samples differed considerably in density and hence in Iinewidth. At fairly low power levels the susceptibility at resonance varies linearly with the square ...
IEEE Translation Journal on Magnetics in Japan, 1988
IEEE Transactions on Magnetics, 2009
The dynamic excitations in the nano-sized Permalloy arrays exhibit a strong resonance mode in ferromagnetic resonance experiments (conventional as well as network analyzer based) for the magnetic field applied in the plane of the array and along the short axis and long axis of the arrays. In network- analyzer experiments, when the dc field was applied along the short axis ...
IEEE Transactions on Microwave Theory and Techniques, 1967
The "dual-mode reflectometer" is a device with which one can measure the relative off-diagonal terms of the tensor reflection coefficient of a hybrid mode composed of two degenerate, mutually perpendicular, independent modes. It differs from the conventional "single-mode reflectometer" in that it permits launching elliptically polarized waves of arbitrary orientation and ellipticity into the main (circular or square) waveguide and ...
1989 IEEE International Magnetics Conference (INTERMAG), 1989
IEEE Magnetics Distinguished Lecture - Can-Ming Hu
Nanoscale Magnetism with Picosecond Time Resolution and High Sensitivity - Hendrik Ohldag - IEEE Magnetics Distinguished Lecture
Gerard Hurley, Distinguished Lecturer - High Frequency Magnetics
Magnetism and Magnetics Technology in the 21st Century
IMS 2011 Microapps - Improved Microwave Device Characterization and Qualification Using Affordable Microwave Microprobing Techniques for High-Yield Production of Microwave Components
IEEE Magnetics 2014 Distinguished Lectures - Tim St Pierre
35 Years of Magnetic Heterostructures
IEEE Magnetics Distinguished Lecture - Mitsuteru Inoue
IMS 2012 Microapps - Bonding Materials used in Multilayer Microwave PCB Applications
Magnetics + Mechanics + Nanoscale = Electromagnetics Future - Greg P. Carman: IEEE Magnetics Distinguished Lecture 2016
Perpendicular magnetic anisotropy: From ultralow power spintronics to cancer therapy
IMS 2012 Microapps - Panel Session: Device Characterization Methods and Advanced RF/ Microwave Design
IMS 2012 Special Sessions: A Retrospective of Field Theory in Microwave Engineering - Magdalena Salazar Palma
IMS 2011 Microapps - Techniques for Validating a Vector Network Analyzer Calibration When Using Microwave Probes
Materials Challenges for Next-Generation, High-Density Magnetic Recording - Kazuhiro Hono: IEEE Magnetics Distinguished Lecture 2016
IMS Organizer: Richard Snyder, President Elect for MTT-S
IMS 2010 - International Microwave Symposium
IMS 2012 Special Sessions: The Evolution of Some Key Active and Passive Microwave Components - Richard True
IMS 2012 Special Sessions: A Retrospective of Field Theory in Microwave Engineering - David M. Pozar
Resonance experiments have been performed at X-band on spherical samples of polycrystalline yttrium garnet, yttrium-gadolinium garnet, yttrium-holmium garnet and nickel-cobalt ferrite. The RF field strength extended up to 60 Oersted. In the case of yttrium garnet the samples differed considerably in density and hence in Iinewidth. At fairly low power levels the susceptibility at resonance varies linearly with the square of the RF magnetic field strength. At high power levels the susceptibility is inversely proportional to the amplitude of the microwave magnetic field. The "spin-wave Iinewidth" Delta H/sub k/ is inferred by extrapolation from the behavior at very high powers. It is found that Delta H/sub k/ is, to a large extent, independent of the Iinewidth Delta H/sub k/ observed by the usual low power experiments. In particular Delta H/sub k/ was found to be essentially the same (approximately 4 Oe) for all yttrium iron garnets (single crystals and polycrystals with linewidth varying between 1.8 Oe and 450 Oe). On the other hand, Delta H/sub k/ increases very rapidly if the yttrium is partially substituted by holmium (Delta H/sub k/~11 Oe for 1 per cent substitution.)
The dynamic excitations in the nano-sized Permalloy arrays exhibit a strong resonance mode in ferromagnetic resonance experiments (conventional as well as network analyzer based) for the magnetic field applied in the plane of the array and along the short axis and long axis of the arrays. In network- analyzer experiments, when the dc field was applied along the short axis of the arrays, the resonance frequency goes down with an increasing interstrip distance up to 1 mum and then saturates for higher values. This behavior clearly demonstrates the presence of dipolar interactions between the individual elements, resulting in the increased resonance frequency for the smaller spacing whereas when the field is applied along the long axis, the resonance frequencies go up with increasing interstrip distance.
The "dual-mode reflectometer" is a device with which one can measure the relative off-diagonal terms of the tensor reflection coefficient of a hybrid mode composed of two degenerate, mutually perpendicular, independent modes. It differs from the conventional "single-mode reflectometer" in that it permits launching elliptically polarized waves of arbitrary orientation and ellipticity into the main (circular or square) waveguide and observing the orientation and ellipticity of the wave reflected by the load. This paper describes application of the dual-mode reflectometer to measurement of the magnetic Kerr effect in semiconductors. The accuracy and resolution of the apparatus is demonstrated with measurements of germanium and silicon at x band. A scattering matrix analysis is given which describes the measurement and calibration procedure.
Summary form only given. Effects of the microwave magnetic field on window breakdown are investigated at the upstream and downstream side of a dielectric interface. Simple trajectory calculations of secondary electrons in an RF field show significant forward motion of electrons parallel to the microwave direction of propagation. The Lorentz-force due to the microwave magnetic field on high-energy secondary electrons might substantially influence the standard multipactor mechanism. As a result, the breakdown power level for the downstream side of a window would be higher than for the upstream side. This hypothesis was tested utilizing an S-band traveling wave resonant ring, powered by a 3 MW magnetron at 2.85 GHz, leading to a total power greater than 60 MW. Breakdown was studied on an interface geometry consisting of a thin alumina slab in the waveguide, oriented normal to the microwave propagation direction.
We have experimentally observed dramatic reductions in the microwave surface resistance Rsof superconducting aluminum thin films due to microwave pumping. For temperatures T > 0.97 Tc, nearly complete suppression of the temperature- dependent component of Rsoccurred when the films were subjected to a microwave magnetic field < 1 Oe at 11.4 GHz. Contrary to theoretical predictions, several abrupt transitions to superconducting states with lower Rswere observed before the transition to the normal state. The reduction of Rsmay provide stability against thermal breakdown in rf cavities currently limited by defect-nucleated quench.
In this paper we discuss experimental results, dwelling particularly on the frequency sensitivity of the minimum microwave field necessary for bubble generation. A broad-band coplanar waveguide circuit was developed to provide leveled microwave power to a 4 μm by 4 μm shorting region producing highly local and intense microwave magnetic fields. In the samples employed, extremely low microwave fields generate bubbles, implying power dissipation in the μW range. We feel that when the system is scaled up to the large anisotropy field values of conventional magnetic bubble devices, the power dissipation will increase dramatically. However, our experimentation has revealed that microwave pulses shorter than 25 nsec may be used to generate bubbles. Due to the anticipated low average power dissipation, such a device may have an advantage over conventional bubble generators.
The technique for investigation of magnetic polariton dispersion in antiferromagnetic crystals of iron borate is developed. For the first time, the volume polariton modes in free samples of FeBO/sub 3/ in static magnetic field H are observed and investigated at frequencies of 30-75 GHz. The nature of extra resonance lines of magnetic polaritons is discussed in the framework of size resonances.
No standards are currently tagged "Microwave Magnetics"