Results 171 to 180 of about 3,668 (227)

5G-enabled, battery-less smart skins for self-monitoring megastructures and digital twin applications. [PDF]

Sci Rep
Lynch C, Adeyeye A, Abbara EM, Umar A, Alhendi M, Minnella C, Iannotti J, Stoffel N, Poliks M, Tentzeris MM.   +9 more
europepmc   +1 more source

Dual-sense circularly polarized array antenna for GPS L1/L2 bands and L-band satellite receivers. [PDF]

Sci Rep
Khudhair AA, Nourinia J, Ghobadi C, Shokri M.   +3 more
europepmc   +1 more source

Dual-Band Passive Beam Steering Antenna Technologies for Satellite Communication and Modern Wireless Systems: A Review. [PDF]

Sensors (Basel)
Nabeel MI, Singh K, Afzal MU, Thalakotuna DN, Esselle KP.   +4 more
europepmc   +1 more source

Highly compact dual-band frequency selective surface for path-loss and coverage improvement in millimeter-wave advanced wireless applications. [PDF]

Sci Rep
Khan S, Malik BT, Koziel S.
europepmc   +1 more source

Topological and Reconfigurable Terahertz Metadevices. [PDF]

Research (Wash D C)
Zhao Z, Wang H, Hu G, Alù A.
europepmc   +1 more source

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Reflectarray antenna design

2017 International Conference on Electromagnetics in Advanced Applications (ICEAA), 2017
The process of reflectarray antenna design can be usually carried out into two separate steps: element design and aperture phase distribution design. In the step of element design, reflectarray elements need to be devised based on the requirements of phase range, element bandwidth, polarization and so on.
Shi-Wei Qu, Geng-Bo Wu
openaire   +1 more source

Optimization of a Gangbuster Reflectarray Antenna

2005 IEEE Antennas and Propagation Society International Symposium, 2005
In this paper we discuss the optimization of the design, carried out through a pseudo-random optimization algorithm, of a gangbuster reflectarray antenna. The variation of reflection coefficient phase on the reflectarray surface is achieved by varying the length of the local wires in the gangbuster surface. For the optimization, a genetic algorithm has
MUSSETTA, MARCO, PIRINOLI P, BLIZNYUK N, ENGHETA N, ZICH, RICCARDO   +4 more
openaire   +1 more source

The reflectarray antenna

IEEE Transactions on Antennas and Propagation, 1963
A class of antennas that utilizes arrays of elementary antennas as reflecting surfaces has been investigated. An antenna of this type is here called a Reflectarray. It has been found that the Reflectarray combines much of the simplicity of the reflector-type antenna with the performance versatility of the array type. The reflecting surfaces employed in
D. Berry, R. Malech, W. Kennedy
openaire   +1 more source

Circular polarized reflectarray antenna

20th Iranian Conference on Electrical Engineering (ICEE2012), 2012
In this paper, aperture coupled dielectric resonator antenna loaded with rotated strip, is used as a CP element for reflectarray antenna. Phase variations are obtained by a symmetric change in the length of the stub. The effect of the various parameters of the structure on the slope of the phase curve is studied. Simulations are carried out with Ansoft
Farzaneh Ahmadi, Keyvan Forooraghi, Zahra Atlasbaf   +2 more
openaire   +1 more source

Reflectarray Antenna at Terahertz Using Graphene

IEEE Antennas and Wireless Propagation Letters, 2013
The use of graphene for fixed-beam reflectarray antennas at Terahertz (THz) is proposed. Graphene's unique electronic band structure leads to a complex surface conductivity at THz frequencies, which allows the propagation of very slow plasmonic modes. This leads to a drastic reduction of the electrical size of the array unit cell and thereby good array
Carrasco-Yepez Francisco-Eduardo, Perruisseau-Carrier Julien   +1 more
openaire   +1 more source