Results 31 to 40 of about 57,568 (302)
Evaluation of 8-Channel Radiative Antenna Arrays for Human Head Imaging at 10.5 Tesla
Sensors, 2021 For human head magnetic resonance imaging at 10.5 tesla (T), we built an 8-channel transceiver dipole antenna array and evaluated the influence of coaxial feed cables.
Myung Kyun Woo +9 more
doaj +1 more source
Enhancing and redirecting carbon nanotube photoluminescence by an optical antenna [PDF]
, 2010 We observe the angular radiation pattern of single carbon nanotubes' photoluminescence in the back focal plane of a microscope objective and show that the emitting nanotube can be described by a single in-plane point dipole.
Böhmler, Miriam +6 more
core +1 more source
Enhancement of raman scattering efficiency by a metallic nano-antenna on top of a high index contrast waveguide [PDF]
, 2013 We theoretically study coupling of dipole radiation into integrated Si3N4 strip waveguides functionalized with a nanoplasmonic antenna. This structure enables efficient coupling of enhanced Raman signals into the fundamental TE-mode of the ...
Baets, Roel +4 more
core +2 more sources
DIPOLE ANTENNAS WITH A SECTOR-SHAPED RADIATION PATTERN [PDF]
Radio Physics and Radio AstronomySubject and Purpose. The directivity characteristics of a dipole antenna when it is placed above and parallel to a perfectly conducting screen of rectangular shape are considered, aiming to theoretically study dipole antennas with sector-shaped radiation
M. M. Gorobets +3 more
doaj +1 more source
Birefringent and dichroic behaviour of plasmonic nano-antennas [PDF]
, 2010 Birefringence and dichroism of plasmonic nano-antennas are investigated. We demonstrate that birefringent and dichroic behaviour of a cross-dipole nanoantenna is due to a length difference, and a relative plasmonic enhancement of the antenna particles ...
Ogut, Erdem +3 more
core +1 more source
IEEE Access, 2018 The miniaturization of a compact planar log-periodic dipole array (LPDA) antenna usually comes with a side effect of the gain deterioration phenomenon.
Geonyeong Shin +4 more
doaj +1 more source
Remote Sensing, 2023 As an effective active remote sensing technology for the exploration of shallow underground targets, ground-penetrating radar (GPR) is a detection method that can be used to obtain information about the characteristics of underground targets by ...
Haifeng Fan +4 more
doaj +1 more source
Nanorod optical antennas for dipolar transitions [PDF]
, 2009 Optical antennas link objects to light. Here, we analyze metal nanorod antennas as cavities with variable reflection coefficients to derive the interaction of dipolar transitions with radiation through the antenna modes.
Stefani, Fernando D. +2 more
core +2 more sources
PERFORMANCE ANALYSIS FOR DIRECTION-FINDING CIRCULAR ANTENNA ARRAY
Известия высших учебных заведений России: Радиоэлектроника, 2018 This paper considers circular antenna arrays comprised of symmetrical dipole radiators applied in communication, navigation and monitoring systems. Despite their widespread use, a number of significant issues is underinvestigated.
Svyatoslav V. Ballandovich +3 more
doaj +1 more source
A study of water-mist recirculation system for filtration and cooling effect in the kitchen hood ventilation system [PDF]
, 2020 Water-mist spray system in several heavy-duty kitchen hood canopies are installed to efficiently control the high heat loads and grease emissions produced from the cooking process and for safety purposes.
Nor Salim, Nor Adrian
core +1 more source