Results 21 to 30 of about 1,620,298 (334)
IEEE Transactions on Antennas and Propagation, 2021 In this article, conformal linear-to-circular (LTC) polarization conversion metasurface (MS) in transmission mode is engineered and fabricated. The conformal MS is cylinder-shaped with curved elements bent on the cylinder wall.
Kaiyue Liu +4 more
semanticscholar +1 more source
Circular Polarization near the Tight Focus of Linearly Polarized Light
Photonics, 2022 We have considered the tight focusing of light with linear polarization. Using the Richards–Wolf formalism, it is shown that before and after the focal plane, there are regions in which the polarization is circular (elliptical).
Sergey S. Stafeev +4 more
doaj +1 more source
Circular Polarization Antenna-Filter
Advanced Electromagnetics, 2019 A two-function filtering antenna device in the 1-2 GHz band is investigated. The device radiates or receives electromagnetic waves of circular polarization and simultaneously performs the function of a second-order bandpass filter.
S. Bankov +4 more
doaj +1 more source
Detection of Circular Polarization in the Galactic Center Black Hole Candidate Sagittarius A* [PDF]
, 1999 We report here the detection of circular polarization in the Galactic Center black hole candidate, Sagittarius A*. The detection was made at 4.8 GHz and 8.4 GHz with the Very Large Array.
Donald C. Backer +5 more
core +3 more sources
Optical Polarization Sensor Based on a Metalens
Sensors, 2022 We investigated an optical microsensor of the polarization state of a laser light based on a metalens. In contrast to known polarization sensors based on metasurfaces that deflect different polarization types using various angles to the optical axis, the
Victor Kotlyar +3 more
doaj +1 more source
Low Loss Transmission Circular Polarizer for KU Band Application
Sukkur IBA Journal of Emerging Technologies, 2018 Low loss transmission circular polarizer is proposed for Ku band applications. The designed structure consists of two closely cross metallic strips which are based on FSS for 15.25 GHz and 15.28 GHz applications.
Farman Ali Mangi
doaj +1 more source
Circular Polarization in Scintillating Sources [PDF]
Symposium - International Astronomical Union, 2001 We discuss the detection of variable circular polarization (CP) in several scintillating radio sources: PKS 1519-273, PKS 0405-385 and Sgr A*. In all cases the CP is variable, with the fractional variability in the CP greatly exceeding that in total intensity.
Macquart, J +4 more
openaire +2 more sources
Dual-band and high-efficiency metasurface-based circular-to-linear polarization converter.
PLoS ONE, 2023 In this paper, to achieve circular-to-linear polarization conversion, a novel polarization converter based on an anisotropic metasurface is proposed.
Baoqin Lin +5 more
doaj +1 more source
Discovery of circularly polarised radio emission from SS 433 [PDF]
, 1999 We report the discovery of circularly polarised radio emission from the radio-jet X-ray binary SS 433 with the Australia Telescope Compact Array. The flux density spectrum of the circular polarization, clearly detected at four frequencies between 1 - 9 ...
Brinkmann W. +11 more
core +2 more sources
The Spectrum and Variability of Circular Polarization in Sagittarius A* from 1.4 to 15 GHz [PDF]
, 2002 We report here multi-epoch, multi-frequency observations of the circular polarization in Sagittarius A*, the compact radio source in the Galactic Center. Data taken from the VLA archive indicate that the fractional circular polarization at 4.8 GHz was -0.
Donald C. Backer +7 more
core +3 more sources