Results 41 to 50 of about 67,724 (288)

A Small UWB Antenna with Dual Band-Notched Characteristics

International Journal of Antennas and Propagation, 2012
A small novel ultrawideband (UWB) antenna with dual band-notched functions is proposed. The dual band rejection is achieved by etching two C-shaped slots on the radiation patch with limited area.
J. Xu, D.-Y. Shen, G.-T. Wang, X.-H. Zhang, X.-P. Zhang, K. Wu   +5 more
doaj   +1 more source

Radiation from a Millimeter-Wave Rectangular Waveguide Slot Array Antenna Enclosed by a Von Karman Radome [PDF]

Journal of the Korean Institute of Electromagnetic Engineering and Science, 2018
In this paper, electromagnetic radiation from a slot array antenna enclosed by a Von Karman radome is analyzed by using the ray tracing method and Huygens’s principle. We consider the rectangular slot array antenna and the Von Karman radome.
Jihyung Kim, Sung Chan Song, Hokeun Shin, Yong Bae Park   +3 more
doaj   +1 more source

Orbiting multi-beam microwave radiometer for soil moisture remote sensing [PDF]

, 1985
The effects of soil moisture and other factors on soil surface emissivity are reviewed and design concepts for a multibeam microwave radiometer with a 15 m antenna are described. Characteristic antenna gain and radiation patterns are shown and losses due
Lawrence, R. W., Shiue, J. C.
core   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source

Optimal radiation pattern synthesis of mutually coupled antenna array using an efficient compensation method

IET Microwaves, Antennas & Propagation, 2021
An efficient compensation method is proposed for the reduction of mutual coupling among the elements of an antenna array using the optimum current amplitude excitation weights.
Avishek Das, Durbadal Mandal, Rajib Kar
doaj   +1 more source

Monopole Antenna with Enhanced Bandwidth and Stable Radiation Patterns Using Metasurface and Cross-Ground Structure

Sensors, 2022
In this paper, a printed monopole antenna with stable omnidirectional radiation patterns is presented for applications in ocean buoy and the marine Internet of Things (IoT).
Patrick Danuor, Kyei Anim, Young-Bae Jung   +2 more
doaj   +1 more source

Hadronic Antenna Patterns as a Probe of Leptoquark Production at HERA [PDF]

, 1997
Hadronic antenna patterns can provide a valuable diagnostic tool for probing the origin of the apparent excess of high $x,Q^2$ events at HERA. We present quantitative predictions for the distributions of soft particles and jets in standard deep inelastic
Abe, Adloff, Adloff, Altarelli, Andersson, Azimov, Azimov, Azimov, Azimov, Breitweg, Breitweg, Brodsky, Cullen-Vidal, Dokshitzer, Dokshitzer, Dokshitzer, Dokshitzer, Dokshitzer, Dokshitzer, Dokshitzer, Dokshitzer, Dokshitzer, Ellis, Ellis, Ellis, Ellis, Giannetti, Hewett, Jikia, Khoze, Khoze, Khoze, Kunszt, M Heyssler, Marchesini, Melanson, Plehn, W.J Stirling, Zeppenfeld   +38 more
core   +2 more sources

Synthesis of flat‐top beampatterns based on simple polynomial transforms of Gaussian excitations

IET Microwaves, Antennas & Propagation, 2023
In the design of antenna arrays which require fast and robust flat‐top beam synthesis, computationally efficient methods are preferred. This feature is usually met by analytical techniques or simple optimisation procedures. On the other hand, in the flat‐
Goran Molnar, Dorian Ljubenko, Mile Šakić   +2 more
doaj   +1 more source

Frequency reconfigurable patch antenna for 4G LTE applications [PDF]

, 2018
A compact printed multi-band frequency reconfigurable patch antenna for 4G LTE applications is presented in this paper (50 x 60 x 1.6 mm3). The antenna consists of W-shaped and Inverted-U shaped patch lines connected in a Tree-shape on the front side of ...
Abbasi, Qammer H., Chattha, Hassan T., Hanif, Maria, Rana, Inam E., Yang, Xiaodong   +4 more
core   +1 more source

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

Advanced Engineering Materials, EarlyView.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello, Qaisar Nawaz, Pier Francesco Ferrari, Laura Pastorino, Roberto Raiteri, Aldo R. Boccaccini   +5 more
wiley   +1 more source