Results 41 to 50 of about 185,245 (299)

Antenna Efficiency Calculations for Electrically Small, RFID Antennas [PDF]

IEEE Antennas and Wireless Propagation Letters, 2007
Radio frequency identification (RFID) antenna efficiency is an important component of link budget design. A method of moments technique based on the summation of segment currents compares favorably with two different results obtained using the finite element method (radiation pattern integration and Wheeler cap). The efficiency of a resonant dipole was
Galehdar, Amir, Thiel, David V, O'Keefe, Steven G   +2 more
openaire   +2 more sources

Wearable, small, and robust: the circular quarter-mode textile antenna [PDF]

, 2015
A miniaturized wearable antenna, entirely implemented in textile materials, is proposed that relies on a quarter-mode substrate integrated waveguide topology.
Agneessens, Sam, Lemey, Sam, Rogier, Hendrik, Vervust, Thomas   +3 more
core   +1 more source

Bandwidth-Constrained Capacity Bounds and Degrees of Freedom for MIMO Antennas

, 2021
The optimal spectral efficiency and number of independent channels for MIMO antennas in isotropic multipath channels are investigated when bandwidth requirements are placed on the antenna. By posing the problem as a convex optimization problem restricted
Capek, Miloslav, Ehrenborg, Casimir, Gustafsson, Mats   +2 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

Effects of Mutual Coupling on Degree of Freedom and Antenna Efficiency in Holographic MIMO Communications

IEEE Open Journal of Antennas and Propagation, 2023
The holographic multiple-input-multiple-output (MIMO) communications refer to the MIMO systems built with ultra-dense antenna arrays, whose channel models and potential applications have attracted increasing attentions recently.
Shuai S. A. Yuan, Xiaoming Chen, Chongwen Huang, Wei E. I. Sha   +3 more
doaj   +1 more source

An investigation into the Gustafsson limit for small planar antennas using optimisation [PDF]

, 2013
The fundamental limit for small antennas provides a guide to the effectiveness of designs. Gustafsson et al, Yaghjian et al, and Mohammadpour-Aghdam et al independently deduced a variation of the Chu-Harrington limit for planar antennas in different ...
Lewis, Andrew, Shahpari, Morteza, Thiel, David V.   +2 more
core   +2 more sources

Efficient Nano Antenna for Photonic Devices

CoRR, 2019
This paper presents the efficient Yagi-Uda nanoantenna with the chain of directors, reflector and a feed element, where these elements have been optimized to fulfil the requirement of high directivity and the gain of antenna. The proposed design consists of six core and cladding with silver core and silicon cladding is used to achieve high directivity.
Vishal K. Doltani, Fahim Aziz Umrani, Riaz A. Soomro   +2 more
openaire   +2 more sources

A non-thermal soldering technique to improve polymer based antenna performance [PDF]

, 2010
Copyright @ 2010 EuMCA non-thermal soldering technique using cold solder or electrically conductive epoxy for connecting SMA connectors to polymer based antennas is proposed in this paper.
AbuTarboush, HF, Cheung, SW, Nilavalan, R, Peter, T   +3 more
core  

Conservation of core complex subunits shaped the structure and function of photosystem I in the secondary endosymbiont alga Nannochloropsis gaditana [PDF]

, 2017
Photosystem I (PSI) is a pigment protein complex catalyzing the light-driven electron transport from plastocyanin to ferredoxin in oxygenic photosynthetic organisms.
Alboresi, Alessandro Alboresi, Allen, Andrea Meneghesso, Archibald, Basso, Ben-Shem, Bernal-Bayard, Boekema, Boekema, Bondioli, Busch, Busch, Busch, Castelletti, Caterina Gerotto, Cavalier-Smith, Clotilde Le Quiniou, Corteggiani Carpinelli, Cox, Croce, Croce, Croce, Diana Simionato, Drop, Drop, Egbert J. Boekema, Engelmann, Färber, Gardian, Geer, Gobets, Gobets, Grouneva, Haldrup, Ikeda, Jansson, Jennings, Jensen, Jensen, Jordan, Khrouchtchova, Kouril, Kouril, Le Corguillé, Le Quiniou, Le Quiniou, Li, Litvín, Liu, Lunde, Martin Scholz, Mazor, Michael Hippler, Morosinotto, Mozzo, Nelson, Oostergetel, Palacios, Passarini, Passarini, Qin, Raven, Riisberg, Roberta Croce, Rodolfi, Sathish K. N. Yadav, Scheres, Scheres, Schmid, Shevchenko, Simionato, Snellenburg, Starkenburg, Sukenik, Sukenik, Terashima, Thangaraj, Tomas Morosinotto, van Stokkum, Vanselow, Veith, Vieler, Watanabe, Watanabe, Wientjes, Wientjes, Wientjes   +87 more
core   +3 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source