Results 91 to 100 of about 2,996 (222)
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
Applied Sciences, 2018 An electrically tuned phase shifter based on the single slot unit cell and liquid crystal for a reconfigurable reflectarray antenna was presented. The simulation and measured results obtained at the F-band were used to demonstrate that the dielectric ...
Sheng Gao +7 more
doaj +1 more source
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
Fractal Reflectarray Antennas: State of Art and New Opportunities
International Journal of Antennas and Propagation, 2016 Fractal geometries are appealing in all applications where miniaturization capabilities are required, ranging from antennas to frequency selective surfaces (FSS) design.
S. Costanzo +5 more
doaj +1 more source
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
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
core +1 more source
Recent Advances in Transparent Reflectarray Antennas
IEEE AccessTransparent Reflectarray Antennas (TRAs) have emerged as a promising solution for next-generation communication systems requiring both electromagnetic performance and optical transparency. This review focuses on a detailed latest work on unit cell design
Altaf Ahmed Mugheri +7 more
doaj +1 more source
Design of a CPSS-based reflectarray cell with controllable reflected phase for dual-circularly-polarised reflectarrays [PDF]
, 2012 International audienceA first step towards the design of dual-circularly polarised reflectarrays with independent control of both polarisations is proposed in X-band.
Cheymol, Cécile +4 more
core +2 more sources
Microstrip reflectarray antenna with offset feed
Electronics Letters, 1992 The authors derive and verify the concept of antenna focusing by a planar 'microstrip reflectarray' antenna. Experimental results from schematically distributed patch radiators with microstrip delay lines are consistent with the simulation results. The advantages and disadvantages of such an antenna are described.
D.-C. Chang, M.-C. Huang
openaire +1 more source
Reflectarray para Estación Base LMDS Basado en Parches Acoplados por Apertura [PDF]
, 2008 A shaped-beam reflectarray based on aperturecoupled elements is demonstrated as central station antenna for Local Multipoint Distribution System (LMDS) in the 10.10- 10.70 GHz band.
Arrebola, Manuel +3 more
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