Results 161 to 170 of about 911 (207)
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Broadband Flat-Gain Transmitarray
2021 International Applied Computational Electromagnetics Society (ACES-China) Symposium, 2021In this work, an X-band flat-gain transmitarray (FGT) antenna is proposed and investigated. The designed FGT is able to provide reliability, compactness and broadband characteristics with high efficiency. The transmitarray consists of multilayer stacked patch cells, which can transmit electromagnetic waves from one side and then provide proper phase ...
Guan-Long Huang +3 more
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Analysis of Nonlinear Distortions in Transmitarrays
2021 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (ElConRus), 2021In this study, an analysis of nonlinear distortions in transmitarrays is presented. The simplified model of a unit cell with PIN diode as a switching element was simulated to estimate the level of generated nonlinear distortions. A 10x10 unit cell transmitarray was analyzed to predict a level of the second harmonic and third-order intermodulation ...
Vitalii V. Kirillov, Pavel A. Turalchuk
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2nd European Conference on Antennas and Propagation (EuCAP 2007), 2007
This paper presents in detail the design, prototyping and measurements of a transmitarray structure. The aim of these devices is to behave like an artificial lens structure (reception/transmission lens). Due to this working behaviour, the system consists of a patch array in the reception part, a phase delay for each patch and another patch array in the
P. de la Torre, M.S. Castaner
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This paper presents in detail the design, prototyping and measurements of a transmitarray structure. The aim of these devices is to behave like an artificial lens structure (reception/transmission lens). Due to this working behaviour, the system consists of a patch array in the reception part, a phase delay for each patch and another patch array in the
P. de la Torre, M.S. Castaner
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Cylindrical perforated transmitarrays
The 2nd Middle East Conference on Antennas and Propagation, 2012In this paper, the radiation characteristics of a cylindrical perforated transmitarray are investigated. Concave and convex cylindrically conformal transmitarrays are designed and analysed using the finite integral technique. Centre and offset beams transmitarrays are considered for satellite applications at 10 GHz.
S.H. Zainud-Deen +3 more
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High-Gain Dual-Band Transmitarray
IEEE Transactions on Antennas and Propagation, 2017zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rui Yuan Wu +4 more
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Terahertz Graphene Based Metamaterial Transmitarray
Wireless Personal Communications, 2018This paper introduces a graphene metamaterial (GMM) transmitarray designed for terahertz applications. The unit-cell element is a multilayered metamaterial structure of a graphene split ring resonator with two variable gaps. The metamaterial properties of the unit-cell element are investigated from 0.74 to 0.94 THz for different conductivities of the ...
Saber Helmy Zainud-Deen +2 more
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Broadband Transmitarray for Satellite Applications in Ku Band
Wireless Personal Communications, 2017This paper investigates the design of broadband perforated transmitarray for satellite applications in X- and Ku-bands. The unit-cell element consists of a dielectric block with four identical holes in the center of each quadrant and is used to control the transmission phase distribution.
Saber Helmy Zainud-Deen +2 more
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A Novel Folded Transmitarray Antenna
2019 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2019In this paper, a novel folded transmitarray antenna is presented. The proposed transmitarray antenna consists of a transmition array with carrying polarized grid, a feed antenna and a polarization rotation reflection surface (PRRS). First, a unit cell consisting of three traditional double-ring phase shift structures and one polarizer grid etched on ...
Guan-Tao Chen +2 more
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Dual polarized transmitarray lens
The 8th European Conference on Antennas and Propagation (EuCAP 2014), 2014A new dual polarization lens working at the frequency of 30GHz has been designed and simulated. The design of the unit cell is based on a structure of four stacked patches coupled by a symmetric cross that achieves a 360-degree phase-shift for both polarizations by varying a different dimension of the patches for each one.
Enrique G. Plaza +3 more
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A Wideband Reconfigurable Transmitarray Element
IEEE Transactions on Antennas and Propagation, 2012Transmitarrays have been shown to be viable architectures for achieving high-directivity reconfigurable apertures. Two reconfigurable transmitarray elements, using single and stacked patches, based on proximity-coupled feeding and two balanced reconfigurable bridged-T phase shifters are presented.
Jonathan Y. Lau, Sean V. Hum
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