Results 1 to 10 of about 2,378 (165)
Practical Design Considerations for Compact Array-Fed Huygens’ Dielectric Lens Antennas [PDF]
Sensors, 2019 This paper presents a practical design consideration for the dielectric lens based on Huygens’ principle (HP) at a short distance (=λ0/2) from a feed antenna to overcome the limitation of the conventional design method.
Bora Seo, Inseop Yoon, Jungsuek Oh
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Beam Steering 3D Printed Dielectric Lens Antennas for Millimeter-Wave and 5G Applications [PDF]
Sensors, 2023 Two types of cost-efficient antennas based on dielectric gradient index dielectric lens have been designed for 5G applications at 28 GHz. The first is a linearly polarized flat lens antenna (LP-FLA) for terrestrial 5G communications.
Asrin Piroutiniya +7 more
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Metasurface Augmented Lens Antennas
2022 International Workshop on Antenna Technology (iWAT), 2022 In this paper the theoretical methodology of lens antennas augmented with metasurfaces is proposed and demonstrated with a 28 GHz 2D Luneburg lens. The paper presents details on a method of images to design a metasurface augmenting a lens antenna. The cases of PEC reflector and metasurface reflector are considered and a 28 GHz Luneburg lens has been ...
Dmitry Zelenchuk
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Power Profile-Based Antenna Selection for Millimeter Wave MIMO With an All-Planar Lens Antenna Array
IEEE Access, 2021 Lens antenna arrays can significantly reduce the number of radio frequency (RF) chains and provide a cost-effective beamforming approach to millimeter-wave massive multiple-input multiple-output (MIMO) systems.
Qianyun Zhang +4 more
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IEEE Access, 2022 Radar-based algorithms for electromagnetic (EM) imaging are developed based on the assumption that EM has a local planar wave front inside the imaging domain.
Azin S. Janani +3 more
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Intelligent Surface-Aided Transmitter Architectures for Millimeter-Wave Ultra Massive MIMO Systems
IEEE Open Journal of the Communications Society, 2021 In this article, we study two novel massive multiple-input multiple-output (MIMO) transmitter architectures for millimeter wave (mmWave) communications which comprise few active antennas, each equipped with a dedicated radio frequency (RF) chain, that ...
Vahid Jamali +4 more
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A Lens Antenna with Reconfigurable Beams for mmWave Wind Profile Radar
Sensors, 2022 Wind profile radar systems require antennas with multiple radiation beams for detecting wind velocity, as well as with a low sidelobe and dual polarization for enhancing the sensitivity for the weak signal reflected from the turbulence.
Yafei Ding +3 more
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Application of metamaterials for the microwave antenna realizations [PDF]
Serbian Journal of Electrical Engineering, 2012 In this paper, the application of left-handed metamaterials for the realization of microwave antennas has been considered. Special emphasis is placed on lens antennas based on gradient-index metamaterials, and their advantages and enhanced ...
Asenov Tatjana +2 more
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Multi Beam Dielectric Lens Antenna for 5G Base Station
Sensors, 2020 In the 5G mobile system, new features such as millimetre wave operation, small cell size and multi beam are requested at base stations. At millimetre wave, the base station antennas become very small in size, which is about 30 cm; thus, dielectric lens ...
Farizah Ansarudin +4 more
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Antenna array with switching scanning in elevation plane
Физика волновых процессов и радиотехнические системы, 2021 It is known that the most reliable communication in hard-to-reach places such as the Arctic, Tundra, Taiga is satellite communication [1-5]. Therefore, for satellite communications, it is necessary to develop your own antenna arrays.
Yuri G. Pasternak +2 more
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