Results 61 to 70 of about 53,947 (297)

Smart antennas made practical

Proceedings of the 9th ACM/IEEE International Conference on Information Processing in Sensor Networks, 2010
Smart antennas are a specific type of directional antenna able to dynamically control the gain as a function of direction. This contrasts with more traditional directional antennas, where the dynamic ability is missing, and with omnidirectional antennas, which are designed to have equal gain in all directions.
E. Ostrom, MOTTOLA, LUCA, M. Nilsson, T. Voigt   +3 more
openaire   +2 more sources

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

Advanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro, Telmo Lopes, André F. Silva, Carmel Majidi, Mahmoud Tavakoli   +4 more
wiley   +1 more source

Revisiting smart antenna array design with multiple interferers using basic adaptive beamforming algorithms: Comparative performance study with testbed results

Engineering Reports, 2021
Smart antennas are becoming popular in the area of cellular wireless communication for capacity enhancement and reduction of the multipath effect and interference. The demand for smart antennas is widely increasing as 5G cellular communication evolves to
SK Imtiaj, Iti Saha Misra, Sandipan Bhattacharya   +2 more
doaj   +1 more source

Hybrid Urban Navigation for Smart Cities

, 2017
This paper proposes a design for a hybrid, city-wide urban navigation system for moving agents demanding dedicated assistance. The hybrid system combines GPS and vehicle-to-vehicle communication from an ad-hoc network of parked cars, and RFID from fixed ...
Gilmore, Robert, Moran, Oisín, Ordóñez-Hurtado, Rodrigo, Shorten, Robert   +3 more
core   +1 more source

Dual-band substrate integrated waveguide textile antenna with integrated solar harvester [PDF]

, 2014
A dual-band wearable textile antenna based on substrate integrated waveguide technology is presented for operation in the [2.4-2.4835]-GHz Industrial, Scientific and Medical band and the [2.5-2.69]-GHz 4G LTE band 7.
Declercq, Frederick, Lemey, Sam, Rogier, Hendrik   +2 more
core   +1 more source

Kinetic Insights into Precursor‐Assisted Soft Sphere Close Packing Revealed by In Situ GISAXS with Implications for Gas Sensing

Advanced Functional Materials, EarlyView.
The versatile precursor‐assisted soft sphere close packing during slot‐die coating is investigated with in situ X‐ray scattering. The soft crystallization pathways towards a close packing involve multistep structural transitions such as surface nucleation, in‐plane, and out‐of‐plane crystallization.
Guangjiu Pan, Wenhe Xie, Suzhe Liang, Ting Tian, Shanshan Yin, Lixing Li, Altantulga Buyan‐Arivjikh, Jinsheng Zhang, Thomas Baier, Zhuijun Xu, Matthias Schwartzkopf, Sarathlal Koyiloth Vayalil, Stephan V. Roth, Yonghui Deng, Peter Müller‐Buschbaum   +14 more
wiley   +1 more source

New type of microstrip antenna with ferroelectric layer

Journal of Telecommunications and Information Technology, 2001
new type of microstrip antenna is proposed using a voltage-controlled ferroelectric thin tape in the multilayered structure. This paper presents the ferroelectric thin tape, its theoretical analysis and design. The results indicate that this concept has
Józef Models, Yevhen Yashchyshyn
doaj   +1 more source

A reconfigurable wideband and multiband antenna using dual-patch elements for compact wireless devices [PDF]

, 2011
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2012 IEEEA reconfigurable wideband and multiband C-Slot patch antenna with dual-patch elements is proposed and studied.
AbuTarboush, H.F., AbuTarboush, H.F., Al-Raweshidy, H.S., Al-Raweshidy, H.S., Budimir, D., Budimir, D., Cheung, S.W., Cheung, S.W., Nasr, K.M., Nasr, K.M., Nilavalan, R., Nilavalan, R., Peter, T., Peter, T.   +13 more
core   +2 more sources

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

Advanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco, Valerio Francesco Annese, Valerio Galli, Ilaria Penna, Debora Russo, Marina Veronesi, Rita Scarpelli, Stefania Sabella, Mario Caironi   +8 more
wiley   +1 more source

Performance analysis and improvement of link adaptation techniques in TDD-HSDPA/SA system

Tongxin xuebao, 2006
The wireless channel fluctuation resulted from smart antennas in TDD-HSDPA/SA（time division duplex-high speed downlink packet access /smart antennas）system,which caused traditional link adaptation technologies invalid,was theoretically investigated.Two ...
CHEN Shu-ping, DU Jiu-hui, WANG Wen-bo
doaj   +2 more sources