Results 21 to 30 of about 5,269,093 (368)

Wideband E-shaped Patch Antennas for Advanced Wireless Terminals

open access: yesAdvanced Electromagnetics, 2023
Low-profile patch antennas have become ubiquitous in wireless terminals, especially as devices have become smaller and demand more functionality out of their RF subsystems.
Y. Rahmat-Samii, J. M. Kovitz
doaj   +1 more source

Hyperfine-induced effects on linear polarization following electron-impact excitation of heliumlike Tl79+ ions with nuclear spin

open access: yesNew Journal of Physics, 2023
A most general density-matrix formalism is presented to investigate linear polarization of characteristic lines following electron-impact excitation of atoms or ions with arbitrary nuclear spin, which can account for depolarization of energy levels and ...
Z W Wu   +4 more
doaj   +1 more source

Polarization formula and polarization inequality for $(p, q)$- linear maps

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
It is proved an analogues of polarization formula and polarization inequality and Martin’s formula for $(p, q)$-linear maps on normed spaces.
T. V. Vasylyshyn, A. V. Zagorodnyuk
doaj   +1 more source

A Compact Multiband Printed Monopole Antenna With Hybrid Polarization Radiation for GPS, LTE, and Satellite Applications

open access: yesIEEE Access, 2020
A new compact printed monopole antenna is presented in this paper. An open-loop hexagonal radiator excited by a microstrip feed line, which is printed on top of the substrate, which is FR4 type, while on another side, a partial ground plane is fixed and ...
Mohammed A. Al-Mihrab   +2 more
doaj   +1 more source

Early Exposure to Water Turbidity Affects Visual Capacities in Cuttlefish (Sepia officinalis)

open access: yesFrontiers in Physiology, 2021
In La Manche (English Channel) the level of turbidity changes, not only seasonally and daily in seawater but also along the coast. As a consequence, vision in marine species is limited when based only on contrast-intensity.
Alice Goerger   +3 more
doaj   +1 more source

Linear polarization of rapidly rotating ultracool dwarfs [PDF]

open access: yes, 2013
Aims. We aim at studying the near infrared linear polarization signal of rapidly rotating ultracool dwarfs with spectral types ranging from M7 through T2 and projected rotational velocities vsini >= 30 km s^{-1}.
Miles-Páez, Paulo Alberto   +3 more
core   +2 more sources

Polarization Enhancement of Microstrip Antennas by Asymmetric and Symmetric Grid Defected Ground Structures

open access: yesIEEE Open Journal of Antennas and Propagation, 2020
A new approach to controlling cross-polarization (XP), for either suppressing XP or exciting circular polarization (CP), in single-fed microstrip antennas using novel grid defected ground structures (GDGSs) is proposed.
Yujie Zhang   +4 more
doaj   +1 more source

Scattered Radiation of Protoplanetary Disks

open access: yesUniverse, 2022
Scattered radiation of circumstellar (CS) dust plays an important role in the physics of young stars. Its observational manifestations are various but more often they are connected with the appearance of intrinsic polarization in young stars and their CS
Vladimir P. Grinin   +1 more
doaj   +1 more source

POLARIZED ELECTRONS FOR LINEAR COLLIDERS [PDF]

open access: yesSpin 2004, 2005
4 pages, 2 tables, contributed to SPIN04 Symposium (Trieste)
Clendenin, J. E.   +9 more
openaire   +2 more sources

Radio sources with ultra-high polarization [PDF]

open access: yes, 2010
A sample of 129 unresolved radio sources with ultrahigh linear polarization (>30 per cent) has been selected from the NRAO VLA Sky Survey. Such high average linear polarization is unusual in extragalactic sources.
Abdalla   +39 more
core   +2 more sources

Home - About - Disclaimer - Privacy