Results 91 to 100 of about 1,902,856 (342)

Antenna-coupled TES bolometers used in BICEP2, Keck array, and SPIDER

, 2015
We have developed antenna-coupled transition-edge sensor (TES) bolometers for a wide range of cosmic microwave background (CMB) polarimetry experiments, including BICEP2, Keck Array, and the balloon borne SPIDER. These detectors have reached maturity and
A. D. Turner, A. G. Vieregg, A. Orlando, A. S. Rahlin, A. Trangsrud, A. Weber, B. G. Keating, C. A. Bischoff, C. B. Netterfield, C. D. Dowell, C. D. Reintsema, C. D. Sheehy, C. L. Kuo, C. L. Wong, C. Pryke, D. Barkats, D. V. Wiebe, E. Bullock, E. M. Leitch, G. C. Hilton, G. Chattopadhyay, G. Davis, G. P. Teply, H. G. LeDuc, H. Hui, H. T. Nguyen, I. Buder, J. A. Bonetti, J. A. Brevik, J. E. Tolan, J. J. Bock, J. M. Kovac, J. P. Filippini, J. P. Kaufman, J. Zmuidzinas, K. D. Irwin, K. Megerian, K. S. Karkare, K. W. Yoon, L. Duband, L. Moncelsi, M. Amiri, M. C. Runyan, M. Halpern, M. Hasselfield, M. Lueker, N. Llombart, null null, P. A. R. Ade, P. K. Day, P. Mason, P. Wilson, R. O’Brient, R. S. Tucker, R. Schwarz, R. V. Sudiwala, R. W. Aikin, R. W. Ogburn IV, S. A. Kernasovskiy, S. Fliescher, S. J. Benton, S. Kefeli, S. R. Golwala, S. R. Hildebrandt, S. Richter, V. Hristov, W. C. Jones, Z. K. Staniszewski   +67 more
core   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Design of Microstrip Antenna Arrays with Rotated Elements Using Wilkinson Power Dividers for 5 G Customer Premise Equipment Applications

International Journal of Antennas and Propagation
Microstrip antenna arrays are proposed in this paper for the customer premise equipment (CPE) applications in the frequency range 1 (FR1) of the 5th generation (5 G) mobile networks. The proposed antenna arrays consist of three FR4 substrates.
Ting-Yi Huang, Yun-Jhang Lee
doaj   +1 more source

Eliminating stray radiation inside large area imaging arrays

, 2018
With increasing array size, it is increasingly important to control stray radiation inside the detector chips themselves. We demonstrate this effect with focal plane arrays of absorber coupled Lumped Element microwave Kinetic Inductance Detectors (LEKIDs)
Barry, Peter, Baryshev, Andrey, Baselmans, Jochem J. A., Bueno, Juan, Doyle, Simon M., Ferrari, Lorenza, Gao, Jian-Rong, Llombart, Nuria, Murugesan, Vignesh, Thoen, David J., Yates, Stephen J. C., Yurduseven, Ozan, Zmuidzinas, Jonas   +12 more
core   +1 more source

Nanoindentation Criteria for Combinatorial Thin Film Libraries

Advanced Engineering Materials, EarlyView.
Thin‐film material libraries are compositional spreads used for screening composition‐structure‐property relationships. Nanoindentation is often used to characterize mechanical behavior across these systems, however variations in methodology are widespread.
Andre Bohn, Adie Alwen, Andrea M. Hodge
wiley   +1 more source

mmWave Massive MIMO with Simple RF and Appropriate DSP

, 2017
There is considerable interest in the combined use of millimeter-wave (mmwave) frequencies and arrays of massive numbers of antennas (massive MIMO) for next-generation wireless communications systems.
Mezghani, Amine, Swindlehurst, A. Lee
core   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Active Electrically Small Antenna Based on Superconducting Quantum Array

, 2012
We introduce Superconductive Quantum Arrays (SQAs) and propose to use these structures as active Electrically Small Antennas (ESA). Several prototypes of the active ESA were fabricated using Nb process with critical current density 4.5 kA/cm2 and ...
Klenov, Nikolay V., Kornev, Victor K., Mukhanov, Oleg A., Sharafiev, Alexey V., Soloviev, Igor I.   +4 more
core   +1 more source

Thermal-Aware Synthesis of 5G Base Station Antenna Arrays: An Overview and a Sparsity-Based Approach

IEEE Access, 2018
Heat removal capabilities and radiation performances of several sparse antenna array topologies are studied for cooling enhancement in 5G millimeter-wave base station antennas.
Y. Aslan, J. Puskely, J. Janssen, M. Geurts, A. Roederer, A. Yarovoy   +5 more
semanticscholar   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source