Results 61 to 70 of about 101,697 (283)

Quasi-Coherent Phase-Based Localization and Tracking of Incoherently Transmitting Radio Beacons

IEEE Access, 2021
The direct measurement of distance-dependent information between wireless units represents a challenge for wireless locating systems, because it requires the exact time synchronization of separate wireless units.
Erik Sippel, Markus Hehn, Tobias Koegel, Patrick Groschel, Andreas Hofmann, Stefan Bruckner, Johanna Geiss, Robert Schober, Martin Vossiek   +8 more
doaj   +1 more source

Addressing spin transitions on 209Bi donors in silicon using circularly-polarized microwaves

, 2016
Over the past decade donor spin qubits in isotopically enriched $^{28}$Si have been intensely studied due to their exceptionally long coherence times.
Lyon, S. A., Rose, B. C., Sigillito, A. J., Tyryshkin, A. M., Yasukawa, T.   +4 more
core   +1 more source

Supercurrent and Andreev bound state dynamics in superconducting quantum point contacts under microwave irradiation [PDF]

, 2011
We present here an extensive theoretical analysis of the supercurrent of a superconducting point contact of arbitrary transparency in the presence of a microwave field.
A. Barone, A. Ozaeta, F. S. Bergeret, G. M. Eliashberg, I. O. Kulik, J. C. Cuevas, P. Virtanen, T. T. Heikkilä   +7 more
core   +4 more sources

Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces

Advanced Functional Materials, EarlyView.
A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai, Yi Ning Zheng, Lei Zhang, Xiao Qing Chen, Giuseppe Castaldi, Tie Jun Cui, Vincenzo Galdi   +6 more
wiley   +1 more source

High‐resolution inverse synthetic aperture radar imaging of satellites in space

IET Radar, Sonar & Navigation
In view of the increasing number of space objects, comprehensive high‐quality space surveillance becomes ever more important. Radar is a powerful tool that, in addition to detection and tracking of objects, also enables spatially high‐resolution imaging ...
Simon Anger, Matthias Jirousek, Stephan Dill, Timo Kempf, Markus Peichl   +4 more
doaj   +1 more source

Rational Device Design and Doping‐Controlled Performance in Fast‐Response π‐Ion Gel Transistors

Advanced Functional Materials, EarlyView.
π‐Ion gel transistors (PIGTs) achieve extraordinary transconductance and stability through device configuration optimization, high‐mobility conjugated polymer selection, and hole scavenger doping. The optimized PIGTs maintain performance on flexible substrates, enabling printed, fast‐response, and wearable electronics.
Masato Kato, Soh Kushida, Nafees Umar Draz, Dan Kyotani, Emanuel Smarsly, Kyota Yoshinaga, Wenhao He, Uwe H. F. Bunz, Kazuhiro Marumoto, Tatsuya Mori, Yohei Yamamoto   +10 more
wiley   +1 more source

Independent System Calibration of Sentinel-1B

Remote Sensing, 2017
Sentinel-1B is the second of two C-Band Synthetic Aperture Radar (SAR) satellites of the Sentinel-1 mission, launched in April 2016—two years after the launch of the first satellite, Sentinel-1A.
Marco Schwerdt, Kersten Schmidt, Núria Tous Ramon, Patrick Klenk, Nestor Yague-Martinez, Pau Prats-Iraola, Manfred Zink, Dirk Geudtner   +7 more
doaj   +1 more source

Efficient RCS Computation Over a Broad Frequency Band Using Subdomain MoM and Chebyshev Approximation Technique

IEEE Access, 2020
The analysis of the target's broadband electromagnetic scattering characteristics plays an important role in radar stealth and recognition areas. The traditional method of moments (MoM) needs to calculate the currents at each frequency point when ...
Xing Wang, Haoxuan Gong, Shuai Zhang, Ying Liu, Ruipeng Yang, Chunheng Liu   +5 more
doaj   +1 more source

Quantum Phase-Slip Junction Under Microwave Irradiation

, 2015
We consider the dynamics of a quantum phase-slip junction (QPSJ) -- a dual Josephson junction -- connected to a microwave source with frequency $\omega_\textrm{mw}$.
Di Marco, Angelo, Hekking, Frank W. J., Rastelli, Gianluca   +2 more
core   +1 more source

Coherent Control of Nitrogen Nuclear Spins via the VB−${\rm V}_B^-$‐Center in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy, Charlie J. Patrickson, Thomas Poirier, James H. Edgar, Bruno Lopez‐Rodriguez, Viktor Ivády, Isaac J. Luxmoore   +6 more
wiley   +1 more source