Results 111 to 120 of about 911 (207)

Dual-Band Circularly Polarized Transmitarray Antenna for Satellite Communications at (20 to 30) GHz

A novel dual-band polarization-independent transmitarray is introduced in this paper for communication systems in Ka-band. Thanks to its unit-cell topology, the transmitarray antenna demonstrates almost complete independent performance at two design ...
Garcia-Vigueras, Maria, Capdevila, Santiago, Hasani, Hamed, Mosig, Juan R., Silva, Joana S.   +4 more
core   +1 more source

Design of Wideband Reflectarray and Transmitarray Antennas With Low Sidelobe and Cross-Polarization Levels Using a Multifunctional Ultrathin Metasurface

IEEE Open Journal of Antennas and Propagation
Ensuring a low cross-polarization level (CPL) is imperative in the design of antennas with a low sidelobe level (SLL). This paper introduces an innovative approach for designing wideband, high-gain, low-sidelobe, and low-cross-polarization reflectarray ...
Yufang Wang, Yuehe Ge, Zhizhang Chen, Ziheng Zhou   +3 more
doaj   +1 more source

Fast Transmitarray Synthesis with Far-Field and Near-Field Constraints. [PDF]

Sensors (Basel), 2022
Loredo S, Plaza EG, León G.
europepmc   +1 more source

Passive Type Reconfigurable Intelligent Surface: Measurement of Radiation Patterns. [PDF]

Micromachines (Basel), 2023
Rana B, Cho SS, Hong IP.
europepmc   +1 more source

Dual-Linearly Polarized Unit-Cell and Transmitarray at Ka-Band

, 2019
International audienceThis paper presents the design and performance of a narrow-patch wide-band unit-cell used for dual-linearly polarized transmitarray with 3-bits of phase resolution and a small lattice periodicity (0.36x lambda(0) at 29 GHz).
Pham, Trung Kien, Clemente, Antonio, Sauleau, Ronan   +2 more
core  

Active Transmitarray with End-Fire Dipole Elements for E-Band

This paper presents a design of an active transmitarray operating at E-band (71-76 GHz) frequency range. The antenna is implemented as a stack of multilayer printed circuit boards with a horn antenna as a source.
Pusa, Jehki, Rantala, Arto, Lamminen, Antti, Varonen, Mikko; id_orcid, Kantanen, Mikko; id_orcid, Kaunisto, Mikko   +5 more
core   +1 more source

Wideband Linearly Polarized Over-2-Bit Transmitarray Antenna for Millimeter-Wave Applications. [PDF]

Micromachines (Basel)
Shen Y, Feng X, Zhang T.
europepmc   +1 more source

Ultra-light antennas via charge programmed deposition additive manufacturing. [PDF]

Nat Commun
Wang Z, Hensleigh R, Xu Z, Wang J, Park JJ, Papathanasopoulos A, Rahmat-Samii Y, Rayne Zheng X.   +7 more
europepmc   +1 more source

High Efficiency Dual-Band Dual-Circularly Polarized Transmitarray Antenna. [PDF]

Micromachines (Basel)
Zhang T, Yang B, Guo J, Shen Y, Luo L, Chen L.   +5 more
europepmc   +1 more source

Innovative Seatbelt-Integrated Metasurface Radar for Enhanced In-Car Healthcare Monitoring. [PDF]

Sensors (Basel)
Asyari RAI, Simorangkir RBVB, Teichmann D.   +2 more
europepmc   +1 more source