Results 91 to 100 of about 3,668 (227)
Stretchable-Substrate-Impregnated Fabric: Deployable Reflectarray Antennas for CubeSats
IEEE AccessThis paper proposes a stretchable-substrate-impregnated fabric for deployable high-gain antenna for small satellites. Constellations of small satellites offer worldwide coverage of wireless communication and earth observation; high-gain antennas are ...
Masato Machida +3 more
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Bandwidth Behavior of Closely Spaced Aperture-Coupled Reflectarrays
International Journal of Antennas and Propagation, 2012 The bandwidth features of reflectarray antennas are analyzed by examining in detail the phase errors due to the compensation mechanism for spatial phase delays.
F. Venneri, S. Costanzo, G. Di Massa
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81-Element single-layer reflectarray with double-ring phasing elements for wideband applications [PDF]
, 2010 A microstrip reflectarray antenna utilizes a planar array of printed patch elements and a conventional prime or offset feed to form an alternative to the parabolic reflector [1].
Bialkowski, M.E. +3 more
core +1 more source
Application of bifocal concept to dual reflectarray configurations for multi-beam satellite antennas in Ka-band [PDF]
, 2017 This contribution describes the design of a multi-beam dual reflectarray antenna for operation in transmission in Ka-band (20 GHz). The bifocal design concept has been used to obtain an improved performance for the off-axis beams with respect to the ...
Encinar Garcinuño, José Antonio +6 more
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Analysis, Design and Applications of Reflectarrays [PDF]
, 2008 A brief overview of reflectarray antennas mainly focused on some efficient analysis and design techniques and on recent developments has been presented.
Encinar Garcinuño, José Antonio
core
Axially symmetric dual‐reflectarray antennas
Electronics Letters, 2014 An axially symmetric dual‐reflectarray antenna is proposed. A main reflectarray is designed to mimic a paraboloidal main reflector, and a sub‐reflectarray is designed to mimic a hyperboloidal or an ellipsoidal sub‐reflector. The dual‐reflectarray antenna is more compact than the conventional curved dual reflector.
Ji Hwan Yoon +3 more
openaire +1 more source
MathematicsReflectarray antenna design traditionally depends on computationally intensive full-wave simulations and experimental measurements, which significantly increase design time and cost.
Seoyeon Oh, Seongmin Pyo, Haneol Jang
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Resonant Elements for Tunable Reflectarray Antenna Design
International Journal of Antennas and Propagation, 2012 This paper presents an accurate analysis of different configurations of reflectarray resonant elements that can be used for the design of passive and tunable reflectarrays.
M. Y. Ismail, M. Inam
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94 GHz Beam Scanning Dual-Reflector Antenna with a Sub-Reflectarray [PDF]
, 2008 A Cassegrain dual-reflector antenna which employs a flat reflectarray subreflector was analysed in a recent paper [1]. It was shown that the antenna beam can be scanned by introducing an appropriate progressive phase distribution across the reflectarray ...
Arrebola, Manuel +6 more
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Beam-Scanning Reflectarray Based on a Single Varactor-Tuned Element
International Journal of Antennas and Propagation, 2012 A single varactor-tuned element is investigated as effective solution for the realization of reconfigurable reflectarray antennas. The proposed configuration is successfully implemented for the design of an X-band reflectarray prototype of 3×15 radiators.
F. Venneri +6 more
doaj +1 more source