Results 101 to 110 of about 3,272 (195)

Simulación de una antena transmitarray de doble banda para comunicaciones satelitales de 20/30 GHz

NOVASINERGIA
Este estudio tuvo como objetivo diseñar y simular una antena tipo transmitarray de doble banda para comunicaciones satelitales en las bandas de 20 GHz y 30 GHz, con el fin de mejorar el rendimiento de ganancia directiva y reducir los costos de ...
Kevin Liroy Ortega Chávez, John Anderson Tipaz Chingal, Nataly Tatiana Coronel Montesdeoca   +2 more
doaj   +1 more source

A Novel Approach to Remote Detection in Medical Radar Applications Using Flexible Transmit Array Lenses [PDF]

This study introduces a novel method employing adaptable transmitarray lenses for medical radar systems, enhancing the direction of electromagnetic beams in the far-field. The newly developed antenna array exhibited marked improvements in gain, bandwidth,
Arif, Rezki El, Asyari, Rifa Atul Izza, Jason Horng, Tzyy Sheng, Lee, Kuan Yuan, Teichmann, Daniel   +4 more
core   +1 more source

Optimal design of transmitarray antennas via low-cost surrogate modelling. [PDF]

Sci Rep, 2023
Belen MA, Caliskan A, Koziel S, Pietrenko-Dabrowska A, Mahouti P.   +4 more
europepmc   +1 more source

Spot Focusing Coma Correction by Linearly Polarized Dual-Transmitarray Antenna in the Terahertz Region

, 2022
Focus scanning is critically important in many terahertz (THz) imaging and sensing applications. A traditional single focusing transmitarray can achieve a good focus when the source is on-axis but moving the source off-axis produces a significant ...
Chan, Chi Hou, Chan, Ka Fai, Chen, Bao-Jie, Ho, Ka Kit Kelvin, Wu, Geng-Bo   +4 more
core  

Design of Dual-Polarized All-Dielectric Transmitarray Antenna for Ka-Band Applications

Applied Sciences
This paper proposes two all-dielectric transmitarrays operating at Ka-band (26.5–40 GHz), achieving dual-polarization and beam-scanning functionalities. The dual-polarized design employs a cross-shaped dielectric post transmission unit, where the lengths
Baixin Liu, Haixin Sun, Xujia Jiang, Jiayu Hu, Changjiang Deng   +4 more
doaj   +1 more source

Achieving wide-angle mechanical beam steering in Ka-band with low-profile transmit-array antennas [PDF]

Beam scanning and high gain are fundamental requisites for antennas operating at millimeter wave, where many 5G and satellite-on-the-move applications are emerging.
Arrebola, M., Costa, J. R., Felício, J., Fernandes, C., Fonseca, N. J. G., Matos, S., Vaquero, Á. F.   +6 more
core   +1 more source

Efficient Analysis of Highly Resonant Transmitarray Element For Sub-THz 6G Communications

IEEE Antennas and Wireless Propagation Letters
An efficient analysis technique for a transmitarray (TA) unit cell based on a method of moments (MoM) in the spectral domain assuming local periodicity is proposed. The MoM employs basis functions consisting of Chebyshev polynomials weighed by a function
Daniel R. Prado, Xuekang Liu, R. Letizia, Claudio Paoloni, Lei Wang   +4 more
semanticscholar   +1 more source

A Novel Circularly Polarized Folded Transmitarray Antenna with Integrated Radiation and Scattering Performance. [PDF]

Sensors (Basel), 2022
Guo Z, Cao X, Liu T, Gao J, Li S, Yang H, Li T.   +6 more
europepmc   +1 more source

Planar, wide-band omnidirectional retroreflector using metal-only transmitarray structure for TE and TM polarizations. [PDF]

Sci Rep, 2022
Pesarakloo A, Khalaj-Amirhosseini M.
europepmc   +1 more source

Metamaterial-Inspired Flat Beamsteering Antenna for 5G Base Stations at 3.6 GHz. [PDF]

Sensors (Basel), 2021
Reis JR, Vala M, Oliveira TE, Fernandes TR, Caldeirinha RFS.   +4 more
europepmc   +1 more source