Results 121 to 130 of about 40,433 (286)

A Flexible Reconfigurable MIMO Antenna for IoT-Enabled Smart Systems

International Journal of Antennas and Propagation
As the Internet of Things (IoT) advances, low-cost, intelligently networked wireless sensor networks (WSNs) are being developed and deployed at cloud edge locations to enable new Internet-based services.
null Shailesh, Garima Srivastava, Sachin Kumar, Saad Aldosary, Walid El-Shafai, Bhawna Goyal, Sandeep Kumar Palaniswamy   +6 more
doaj   +1 more source

Widely tunable multiband reconfigurable patch antenna for wireless applications [PDF]

, 2010
The official published version can be obtained from the link below - Copyright @ EuCAP 2010A design of a low profile reconfigurable microstrip patch antenna is presented. The antenna consists of four suppatches connected to one feed line, each sub-patch
AbuTarboush, HF, Al-Raweshidy, H, Budimir, D, Nasr, KM, Nilavalan, R   +4 more
core  

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

Processing and characterization of epitaxial GaAs radiation detectors

, 2015
GaAs devices have relatively high atomic numbers (Z=31, 33) and thus extend the X-ray absorption edge beyond that of Si (Z=14) devices. In this study, radiation detectors were processed on GaAs substrates with 110 $\mu\textrm{m}$ - 130 $\mu\textrm{m ...
Arsenovich, T., Gädda, A., Härkönen, J., Junkes, A., Karadzhinova, A., Kostamo, P., Lipsanen, H., Luukka, P., Mattila, M., Nenonen, S., Peltola, T., Riekkinen, T., Tuominen, E., Winkler, A., Wu, X.   +14 more
core   +1 more source

Resistive Heating for Inducing Localized Crystal Growth in Organic Thin Film Devices

Advanced Materials Technologies, EarlyView.
Rubrene thin films are promising for organic optoelectronics due to high hole mobility. However, uncontrolled crystallization and grain boundaries from standard thermal processing hinder lateral device scalability. This work presents femtosecond‐laser micromachining and patterned resistive heating to induce localized, deterministic crystallization ...
Anna‐Lena Hofmann, Roozbeh Irandoost, Moritz Nützel, Tobias Antrack, Wooik Jang, Markas Sudzius, Hrisheekesh Thachoth Chandran, Gang Li, Johannes Benduhn, Karl Leo   +9 more
wiley   +1 more source

Mapping of integrated PIN diodes with a 3D architecture by scanning microwave impedance microscopy and dynamic spectroscopy. [PDF]

Beilstein J Nanotechnol, 2020
Coq Germanicus R, De Wolf P, Lallemand F, Bunel C, Bardy S, Murray H, Lüders U.   +6 more
europepmc   +1 more source

Microwave switching power divider [PDF]

, 1981
A pair of parallel, spaced-apart circular ground planes define a microwave cavity with multi-port microwave power distributing switching circuitry formed on opposite sides of a thin circular dielectric substrate disposed between the ground planes.
Johnson, R. W., Stockton, R. J.
core   +1 more source

Unveiling Complementary Unipolar Electrical Transport in ZnO‐Co3O4 Core–Shell Nanowires Exploiting Iontronics

Advanced Materials Technologies, EarlyView.
Complementary unipolar electrical transport is demonstrated in ZnO‐Co3O4 core–shell nanowires, by engineering multi‐terminal device architectures that allow to selectively address different sections of the nanostructure and resorting on ionic liquid gating for conformal capacitive coupling and field effect control.
Valeria Demontis, Mojtaba Gilzad Kohan, Luca Nappi, Maria Jesus Rodriguez Douton, Alberto Vomiero, Francesco Rossella   +5 more
wiley   +1 more source

Broadband Dual-Sense Circular-Polarization Reconfigurable Metasurface Antenna for Wearable Applications

IEEE Access
This manuscript introduces a broadband dual-sense circular-polarization (CP) reconfigurable coplanar waveguide (CPW)-fed metasurface (MS) antenna for wearable applications.
Tu Tuan Le, Yong-Deok Kim, Tae-Yeoul Yun
doaj   +1 more source

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

Advanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim, Donggeun An, Hyunjae Shin, Youngno Youn, Wonbin Hong   +4 more
wiley   +1 more source