Superconducting microwave devices
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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.
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)
Ferroelectric materials and applications
Science, technology and applications spanning the millimeter-waves, terahertz and infrared spectral regions
This is a conference with a focus on wireless components, applications, and systems that impact both our current and future life style. The conference's main niche is to bring together technologists, circuit designers, system designers, and entrepreneurs at a single event. It was and is the place where these worlds meet, where new processes and systems can be benchmarked against the needs of circuit designers at the bleeding edge of RF systems, where today's design compromises can trigger tomorrow's advanced technologies. Where dreams can become a reality. RWS is the cornerstone conference for Radio Wireless Week.
The EuMIC conference is jointly organized by GAAS® Association and EuMA and is the premierEuropean technical conference for RF microelectronics. Aim of the conference is to promote thediscussion of recent developments and trends, and to encourage the exchange of scientific andtechnical information covering a broad range of high-frequency related topics, from materialsand technologies to integrated circuits and applications, that will be addressed in all of theiraspects: theory, simulation, design and measurement. If you are interested in anything aboutmicrowave and RF IC's, the EuMIC conference is an exceptional venue to learn about the latestadvances in the field and meet recognized experts from both Industry and Academia.
Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.
IEEE Antennas and Wireless Propagation Letters (AWP Letters) will be devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation.
Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission
The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...
Electrical insulation common to the design and construction of components and equipment for use in electric and electronic circuits and distribution systems at all frequencies.
IEEE Conference Record - Abstracts. 1991 IEEE International Conference on Plasma Science, 1991
50th Annual Device Research Conference, 1992
IEEE Transactions on Microwave Theory and Techniques, 1999
31st ARFTG Conference Digest, 1988
The conventional way to measure the nonlinear behavior of active microwave devices is by using a spectrum analyzer. However, due to lack of phase information, the real waveform of the distorted signal cannot be obtained in this way. On the other hand, using an oscilloscope to show the waveform is an old technique for low fkequency signals. Until recently, this ...
IEEE Transactions on Microwave Theory and Techniques, 1965
The forty-eight technical papers of the 1965 MTT Symposium provide a great fund of detailed information of the state of the microwave art. In a more general sense, the content of the program also shows unmistakable trends which we must not ignore. Before devoting our attention to the specialized presentations to follow, let us pause to consider where we are ...
Quantum Annealing: Current Status and Future Directions - Applied Superconductivity Conference 2018
ASC-2014 SQUIDs 50th Anniversary: 6 of 6 - Kent Irwin - SQUIDs as detectors for cosmology
IMS 2011-100 Years of Superconductivity (1911-2011) - Existing and Emerging RF Applications of Superconductivity
ASC-2014 SQUIDs 50th Anniversary: 1 of 6 Arnold Silver
Superconducting Detectors for Astrophysics and Cosmology - ASC-2014 Plenary series - 9 of 13 - Thursday 2014/8/14
IMS 2012 Special Sessions: The Evolution of Some Key Active and Passive Microwave Components - E. C. Niehenke
The Josephson Effect: SQUIDs Then and Now: From SLUGS to Axions
Nanophotonic Devices for Quantum Information Processing: Optical Computing - Carsten Schuck at INC 2019
ASC-2014 SQUIDs 50th Anniversary: 3 of 6 - Bob Fagaly
The Prospects for Scalable Quantum Computing with Superconducting Circuits - Applied Superconductivity Conference 2018
IMS 2012 Special Sessions: The Evolution of Some Key Active and Passive Microwave Components - K. R. Varian
IMS 2011 Microapps - Volume Manufacturing Trends for Automotive Radar Devices
Recent Research Activities of Applied Superconductivity in China
The Josephson Effect: Josephson Digital Electronics in the Soviet Union
Microwave Journal Panel Session Path to 5G - Design and Test Challenges - MicroApps IMS 2015
One HTS Josephson Junction, An Array of Applications: Has anything come from HTS devices in the last 30 years?
Superconductive Energy-Efficient Computing - ASC-2014 Plenary-series - 6 of 13 - Wednesday 2014/8/13
MicroApps: Measurement Advances for Differential and I/Q Devices (Agilent Technologies)
Voltage Metrology with Superconductive Electronics
The conventional way to measure the nonlinear behavior of active microwave devices is by using a spectrum analyzer. However, due to lack of phase information, the real waveform of the distorted signal cannot be obtained in this way. On the other hand, using an oscilloscope to show the waveform is an old technique for low fkequency signals. Until recently, this technique was not suitable for microwave frequencies.
The forty-eight technical papers of the 1965 MTT Symposium provide a great fund of detailed information of the state of the microwave art. In a more general sense, the content of the program also shows unmistakable trends which we must not ignore. Before devoting our attention to the specialized presentations to follow, let us pause to consider where we are headed in microwave theory and techniques. This is our eleventh symposium, and the microwave art is now about twenty-five years old. The record of those years is something to be proud of in scientific applications, in engineering, and in business enterprise---except perhaps for some recent microprofits.
Over the last few years several groups have fabricated High Temperature Superconducting (HTS) thin film microwave devices which have included a ferroelectric thin film layer in their design. The electric field dependence of the ferroelectric promises desirable in-situ tuning of the frequency response. Here we present the results of our experiments on the tuning of a coplanar HTS resonator using single crystal strontium titanate (STO). We have patterned a simple coplanar resonator device onto Y-Ba-Cu-O thin films deposited on  magnesium oxide substrates. Careful consideration of the size, position and biasing of these high permittivity STO crystals with respect to the planar device allows us to minimise the perturbance to the plain resonators response whilst at the same time maximising the degree to which we are able to tune the device. We have also performed a series of capacitance measurements on our STO crystals to obtain reliable data for the dependence of the permittivity on temperature, applied bias and crystallographic orientation.
The conventional c-axis intrinsic Josephson junction (IJJ) stack is usually fabricated from a piece of single crystal in such a way that it looks like a small mesa sitting on a big pedestal. In some cases the effects of this pedestal should be taken into account in order to explain the experimental observations. To avoid this problem we have developed a novel technique by which we are able to remove a small sample from the single crystal and place it on a substrate with low microwave loss. This enable us to couple it to other microwave devices such as antenna etc. This small sample, or junction stack, measures a few micrometers by a few micrometers in the a-b plane and a few hundred angstroms along the c-axis and is plated with normal metal on both the top and the bottom. To distinguish the structure from the conventional one, we call it an insular intrinsic Josephson junction stack. We carefully study current-voltage characteristics, microwave responses, frequency mixing properties, and discuss the possible applications.
We describe the near-field scanning microwave microscopy of microwave devices on a length scale much smaller than the wavelength used for imaging. Our microscope can be operated in two possible configurations, allowing a quantitative study of either material properties or local electric fields.
High temperature superconductors (HTS), just after discovery, were investigated and oriented for practical applications at microwave frequencies. The following areas of HTS study at microwaves are specified: 1. Low loss transmission lines and high quality resonators and filters; 2. Signal limiters, switches and digital phase shifters based on the transition from superconducting to normal state of the HTS material (S-N transition); 3. Bolometers and resistive type mixers for frequencies up to a few THz; 4. Applications of the Josephson effect to the generation and detection of THz frequency signals and to frequency measurement and spectroscopy. All these applications are realized at the operational temperature of 60-80 K. YBa/sub 2/Cu/sub 3/O/sub 7/ epitaxial films on single crystal substrate are commonly used. The temperature of the superconductive phase transition of the films is about 90 K. The films can be fabricated on the industrial level.
The microwave losses in kinetic-inductance devices fabricated from NbCN/MgO/NbCN trilayers are being investigated. The loss tangent of an amorphous MgO thin film has been measured for frequencies near 10 GHz with a kinetic-inductance stub filter. The value of 0.0031 represents a factor of approximately 3 improvement over Si:H films found for a similar kinetic- inductance structure operating in a similar frequency range. Further improvement in the dielectric is also discussed. Other properties of the superconducting trilayer structure are consistent with previous results.<<ETX>>
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