Results 81 to 90 of about 152,416 (209)
IET Microwaves, Antennas & PropagationThis paper addresses the problem of surface wave confinement and the suppression of undesired transverse electric (TE) mode propagation inside the grounded dielectric slab when excited by the transverse magnetic (TM) slot launcher.
Saeed Mahmoodi +3 more
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IEEE Access, 2019 This paper presents a design methodology of three-dimensional (3-D) passive metallic waveguide-array lens antenna (MWALA) by implementing the Rotman lens concept (RLC) for collinear multi-beam radiations on the same angular plane.
Hsi-Tseng Chou +2 more
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Multibeam Receiving Antennas Employing Generalized Joined Coupler Matrix
Owing to the characteristics of directional couplers, series-fed multibeam receiving antenna arrays require different treatments from their transmitting counterparts.
Guo, CA, Yuan, J, Jay Guo, Y
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SensorsRecently, the community has seen a rise in interest and development regarding holographic antennas. The planar hologram is made of subwavelength metal patches printed on a grounded dielectric board, constituting flat metasurfaces.
Chuan-Kuei Weng +3 more
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IEEE Open Journal of Antennas and PropagationIn this article, two multibeam reflectarray antennas are presented for Ka-band in a multi-feed configuration. Both feature a wide-angle scanning range with very low scan losses.
Andres Gomez-Alvarez +3 more
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Recent Advances in the Optimal Synthesis of Multibeam Satellite Antennas
, 2013 We present some outcomes of recent research activities concerning the optimal synthesis of antennas for satellite multibeam telecommunications. Recent advances include an enhancement of performances in the power synthesis of continuous aperture sources ...
BUCCI, OVIDIO MARIO +4 more
core
Review of Recent Phased Arrays for Millimeter-Wave Wireless Communication
Sensors, 2018 Owing to the rapid growth in wireless data traffic, millimeter-wave (mm-wave) communications have shown tremendous promise and are considered an attractive technique in fifth-generation (5G) wireless communication systems.
Aqeel Hussain Naqvi, Sungjoon Lim
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Multibeam printed antenna arrays
Electronics Letters, 1993 The design and realisation of two new types of microwave printed antenna array, which exhibit unusual radiation diagrams are described. Some ideas concerning the association of radiating elements into blocks are developed in order to synthesise important radiation functions: creation of multibeam patterns, reduction of the secondary lobe levels ...
E. Motta Cruz, J.P. Daniel
openaire +1 more source
Comparison of fabric and embroidered dipole antennas
, 2013 Flexible antennas are an important component for wearable wireless devices of the future. A comparison between fabric and embroidered dipole antennas is performed to evaluate the suitability of different conductors as building blocks of textile antennas.
Fumeaux, I., Kaufmann, T., Fumeaux, C.
core
THE IMPACT OF ANTENNA REFLECTOR DEFORMATION ON DIRECTION DIAGRAM
Известия высших учебных заведений. Поволжский регион:Технические науки, 2020 Background. The objects of study are the radiation patterns of parabolic antennas. Parabolic antennas are widely used in the passive direction finding problem. The monopulse method is one of the most common methods of passive direction finding.
A. S. Lavrent'eva +2 more
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