Zobrazeno 1 - 10
of 1 487
pro vyhledávání: '"Multiple beam"'
Autor:
Jing Qin, Olayan Albalawi
Publikováno v:
Alexandria Engineering Journal, Vol 101, Iss , Pp 8-15 (2024)
We demonstrate the design of a highly directive circularly polarized planar reflectarray in this paper, with efficient polarization conversion from the linearly polarized excitation to the circularly polarized radiations based on a novel Jerusalem li
Externí odkaz:
https://doaj.org/article/691db8873eb94f21ba2c8db24fc31749
Publikováno v:
Guangtongxin yanjiu, Pp 23004901-23004907 (2024)
The single-satellite multi-beam interference source localization method requires more than three co-frequency beams to receive the interference source signal to achieve positioning. Due to the limited number of co-frequency beams and the randomness o
Externí odkaz:
https://doaj.org/article/01c1026639fb4800a8c2bb44a3092df1
Autor:
Melanie Nentwich, Matthias Zschornak, Tina Weigel, Thomas Köhler, Dmitri Novikov, Dirk C. Meyer, Carsten Richter
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 1, Pp 28-34 (2024)
During X-ray diffraction experiments on single crystals, the diffracted beam intensities may be affected by multiple-beam X-ray diffraction (MBD). This effect is particularly frequent at higher X-ray energies and for larger unit cells. The appearance
Externí odkaz:
https://doaj.org/article/022d93b6981b45dc8262be7a5a557072
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
Fast and versatile beam forming and steering technologies are now crucial for various emerging applications, including wireless optical communications and optical switches. However, these technologies often rely on expensive components, such as spati
Externí odkaz:
https://doaj.org/article/a8803794840d406096267c8f00057764
Publikováno v:
Journal of Communications Software and Systems, Vol 19, Iss 2, Pp 168-177 (2023)
The evolution of mobile technology and computation systems enables User Equipment (UE) to manage tremendous amounts of data transmission. As a result of current 5G technology, several types of wireless traffic in millimeter wave bands can be transmit
Externí odkaz:
https://doaj.org/article/2e286ecbd98343e3af5c8bd1ade7048c
Publikováno v:
IEEE Journal of Microwaves, Vol 3, Iss 2, Pp 800-814 (2023)
3D-printing is leading to a major transformation in many industrial and application sectors, ranging from medical to aerospace. In the space sector, 3D-printing has firstly been adopted for the development of structural and thermal parts, such as bra
Externí odkaz:
https://doaj.org/article/7255d0c991174c1882b99436185cf373
Akademický článek
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Autor:
Yogesh Kumar Gupta, Aditya Goel
Publikováno v:
Heliyon, Vol 9, Iss 2, Pp e13325- (2023)
A free space optical module is used in laser communication to transport a signal from the transmitter to the receiver. Free Space Optical Communication (FSOC) is a Line of Sight connectivity that sends a highly narrow beamwidth. FSOC provides high ba
Externí odkaz:
https://doaj.org/article/831ea9ff37ef4eb082d5710c1ed793b4
Publikováno v:
Journal of Synchrotron Radiation, Vol 29, Iss 1, Pp 159-166 (2022)
Rigorous dynamical theory calculations show that four-beam diffraction (4BD) can be activated only by a unique photon energy and a unique incidence direction. Thus, 4BD may be used to precisely calibrate X-ray photon energies and beam positions. Base
Externí odkaz:
https://doaj.org/article/7a7bcc8678bd4d68b34e33a102074fbb
Autor:
Nelson J. G. Fonseca, Sophie-Abigaël Gomanne, José Rico-Fernández, Petar Jankovic, Jaione Galdeano, Giovanni Toso, Piero Angeletti, Manuel Arrebola, Oscar Quevedo-Teruel
Publikováno v:
Sensors, Vol 23, Iss 14, p 6573 (2023)
This paper reports on the design and experimental validation of a fully-metallic double-ridged waveguide 10 × 10 Rotman lens additively manufactured as a single part. The wide band operation of this quasi-optical beamformer enables us to cover the u
Externí odkaz:
https://doaj.org/article/0180caa56fc14376aa92c42c9d3f6226