Results 21 to 30 of about 225,187 (289)

Research on the Withstand Voltage Properties of Cr/Mn-Doped Al₂O₃ Ceramics in Vacuum

Electronic Materials
Al2O3 ceramics are widely used in vacuum electronic devices. However, surface flashover in a vacuum during the application of high voltage significantly influences their reliability and restricts the development of vacuum electronic devices.
Dandan Feng, Xiaojing Wang, Xueying Han, Zhiqiang Yu, Jialun Feng, Hefei Wang   +5 more
doaj   +1 more source

Photo-devices for optical controlling of microwave circuits

Journal of Telecommunications and Information Technology, 2001
The most important optical devices which can be used for controlling microwave circuits will be presented in the paper. The performance and the parameters of the devices such as semiconductor microwave optoelectronic switches, photodiodes and ...
Zenon R. Szczepaniak, Bogdan A. Galwas
doaj   +1 more source

Ridge Gap Waveguide Based Liquid Crystal Phase Shifter

IEEE Access, 2020
In this paper, the gap waveguide technology is examined for packaging liquid crystal (LC) in tunable microwave devices. For this purpose, a line based passive phase shifter is designed and implemented in a ridge gap waveguide (RGW) topology and filled ...
Matthias Nickel, Alejandro Jimenez-Saez, Prannoy Agrawal, Ahmed Gadallah, Andrea Malignaggi, Christian Schuster, Roland Reese, Henning Tesmer, Ersin Polat, Dongwei Wang, Peter Schumacher, Rolf Jakoby, Dietmar Kissinger, Holger Maune   +13 more
doaj   +1 more source

Fabrication, properties, and applications of flexible magnetic films

, 2013
Flexible magnetic devices, i.e., magnetic devices fabricated on flexible substrates, are very attractive in application of detecting magnetic field in arbitrary surface, non-contact actuators, and microwave devices due to the stretchable, biocompatible ...
Li, Run-Wei, Liu, Yiwei, Zhan, Qingfeng
core   +1 more source

Coupling molecular spin states by photon-assisted tunneling [PDF]

, 2010
Artificial molecules containing just one or two electrons provide a powerful platform for studies of orbital and spin quantum dynamics in nanoscale devices. A well-known example of these dynamics is tunneling of electrons between two coupled quantum dots
AC Johnson, AV Khaetskii, C Barthel, CWJ Beenakker, EA Laird, FHL Koppens, FHL Koppens, FHL Koppens, H Bluhm, H-A Engel, J Danon, JM Taylor, JM Taylor, JM Taylor, JR Goldman, JR Petta, JR Petta, JR Petta, K Ono, KC Nowack, KD Petersson, M Field, M Pioro-Ladriere, M Stopa, R Hanson, S Nadj-Perge, T Fujisawa, T Meunier, TH Oosterkamp, VN Golovach, VN Golovach, WG van der Wiel   +31 more
core   +6 more sources

Coexistence of multiuser entanglement distribution and classical light in optical fiber network with a semiconductor chip

Chip
Building communication links among multiple users in a scalable and robust way is a key objective in achieving large-scale quantum networks. In a realistic scenario, noise from the coexisting classical light is inevitable and can ultimately disrupt the ...
Xu Jing, Cheng Qian, Xiaodong Zheng, Hu Nian, Chenquan Wang, Jie Tang, Xiaowen Gu, Yuechan Kong, Tangsheng Chen, Yichen Liu, Chong Sheng, Dong Jiang, Bin Niu, Liangliang Lu   +13 more
doaj   +1 more source

Graphene‐Based Microwave Metasurfaces and Radio‐Frequency Devices

Advanced Photonics Research, 2021
Graphene, as a 2D material, has attracted significant attention due to its particular electronic band structure and unique physical properties. Metasurfaces integrated with graphene hold great promise for dynamic manipulation of the electromagnetic waves,
Jin Zhang, Weiren Zhu
doaj   +1 more source

Reversible optical to microwave quantum interface

, 2012
We describe a reversible quantum interface between an optical and a microwave field using a hybrid device based on their common interaction with a micro-mechanical resonator in a superconducting circuit.
Abdi, M., Barzanjeh, Sh., Milburn, G. J., Tombesi, P., Vitali, D.   +4 more
core   +1 more source

Near-Field Scanning Microwave Microscopy: Measuring Local Microwave Properties and Electric Field Distributions

, 1998
We describe the near-field 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 ...
Anlage, Steven M., Dutta, S. K., Feenstra, B. J., Steinhauer, D. E., Thanawalla, Ashfaq S., Vlahacos, C. P., Wellstood, F. C.   +6 more
core   +2 more sources

Millimeter-wave FET modeling based on a frequency extrapolation approach [PDF]

, 2000
An empirical distributed model, based on electromagnetic analysis and standard S-parameter measurements up to microwave frequencies, is shown to be capable of accurate small-signal predictions up to the millimeter-wave range.
Cidronali, A., Collodi, G., Santarelli, A., Toccafondi, C., Vannini, G.   +4 more
core   +1 more source