Results 211 to 220 of about 22,763 (260)
Some of the next articles are maybe not open access.
THE PSEUDOGAP IN MULTIBAND SUPERCONDUCTIVITY
International Journal of Modern Physics B, 2012The pseudogap (PG) excitation is analyzed as a natural event in multiband superconductivity. It corresponds to minimal quasiparticle excitation energy of an electron band not touched by the chemical potential. The critical points of the phase diagram are determined by vanishing conditions for normal state pseudogaps (NPG).
Kristoffel, N., Rubin, P.
openaire +1 more source
Proceedings of the IEEE 2005 Custom Integrated Circuits Conference, 2005., 2006
This paper presents the design of UWB transceivers from both system-level and circuit-level perspectives. Following a detailed analysis of the impact of RF imperfections on the performance of the system, we review a number of transceiver and synthesizer architectures that can satisfy the MBOA UWB standard requirements.
Behzad Razavi +7 more
openaire +1 more source
This paper presents the design of UWB transceivers from both system-level and circuit-level perspectives. Following a detailed analysis of the impact of RF imperfections on the performance of the system, we review a number of transceiver and synthesizer architectures that can satisfy the MBOA UWB standard requirements.
Behzad Razavi +7 more
openaire +1 more source
Multiband Optical Switch Technology
Optical Fiber Communication Conference (OFC) 2022, 2022We developed a multiband switch element using a Mach-Zehnder interferometer with π shift utilizing wide and narrow waveguides for large fabrication tolerance. The fabricated 8 × 8 matrix switch using the element exhibited switch extinction ratios of more than 47 dB in wavelength from 1260 to 1675 nm.
Takashi Goh +2 more
openaire +2 more sources
2011 VIII International Conference on Antenna Theory and Techniques, 2011
We developed a version of the multiband antenna. The frequency dependence of input impedance and voltage standing wave ratio (VSWR) are determined. The eighteen versions of antennas with different widths of the exciting slots and different values of similarity are investigated. Antenna is studied experimentally with the given specifications.
Savochkin, Alexander A., Nudga, A. A.
openaire +2 more sources
We developed a version of the multiband antenna. The frequency dependence of input impedance and voltage standing wave ratio (VSWR) are determined. The eighteen versions of antennas with different widths of the exciting slots and different values of similarity are investigated. Antenna is studied experimentally with the given specifications.
Savochkin, Alexander A., Nudga, A. A.
openaire +2 more sources
International Journal of Modern Physics B, 2002
Multi-band superconductivity is investigated by using two-particle Green's function techniques, and equations for coupled states are derived in the framework of a two-band model. These results suggest that superconductivity appears, even if electron–electron interaction is positive.
HIDEMI NAGAO +3 more
openaire +1 more source
Multi-band superconductivity is investigated by using two-particle Green's function techniques, and equations for coupled states are derived in the framework of a two-band model. These results suggest that superconductivity appears, even if electron–electron interaction is positive.
HIDEMI NAGAO +3 more
openaire +1 more source
Multiband detection of energy fluctuations
The Journal of the Acoustical Society of America, 1995The filtering properties of the ear permit the auditory periphery output to be viewed as a bank of parallel quasi-independent channels. The purpose of this study was to examine how information contained among the independent channels is combined. Four related experiments were undertaken in which the detection of an energy change within a channel was ...
J H, Grose, J W, Hall
openaire +2 more sources
Multiband Vector Lattice Solitons
Physical Review Letters, 2003We predict multiband vector solitons in nonlinear periodic systems, using photonic lattices as a prime example. The solitons consist of two optical fields arising from different bands of the transmission spectrum, which involve both bound state and radiation mode components.
Oren, Cohen +4 more
openaire +3 more sources
Multiband cellular RF solutions
IEEE Journal of Solid-State Circuits, 2004This paper presents the integration trends and technology options for a multiband cellular RF solution. On the product level, forward integration evolves from the PA function via a transmit front-end to a fully integrated radio. On the component level, the main challenge is in the passives and the dedicated technologies developed for this.
van Straten, F.E. +3 more
openaire +1 more source
MULTIBAND MODEL OF CUPRATE SUPERCONDUCTIVITY
International Journal of Modern Physics B, 2008A minimal model for the description of cuprate superconductor characteristics on doping scale (hole and electron) is developed. The leading interband pairing channel couples an itinerant band and defect states created by doping. Bare gaps between them are supposed and become closed by extended doping. Band overlap conditions determine special points in
Kristoffel, Nikolai +2 more
openaire +2 more sources
Multiband cyclic wavelet transforms
Proceedings of 3rd IEEE International Conference on Image Processing, 2002Multiresolution analysis via decomposition into wavelets has been established as an important transform technique in signal processing. A wealth of results is available on this subject, the framework has been extended to treat finite length sequences of size 2/sup n/ (for positive integers n) over finite fields.
Sandip Sarkar, H. Vincent Poor
openaire +1 more source