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IEEE Transactions on Antennas and Propagation, 2023
A parallel-plate Luneburg lens (LL) based on all-metal metamaterial is presented in this article. To achieve the required refractive index distribution of the LL, an all-metal unit cell with a separated cuboid is proposed, whose height is related to its ...
Ji-wei Lian +4 more
semanticscholar +1 more source
A parallel-plate Luneburg lens (LL) based on all-metal metamaterial is presented in this article. To achieve the required refractive index distribution of the LL, an all-metal unit cell with a separated cuboid is proposed, whose height is related to its ...
Ji-wei Lian +4 more
semanticscholar +1 more source
Spaceborne Multibeam Phased Array Antennas for Satellite Communications
IEEE Aerospace and Electronic Systems Magazine, 2023Multibeam phased array antenna is one of the core payloads of the satellite communication system, which has the potential to realize the transformation of the satellite communication system from application-adapted satellite to satellite-adapted ...
Li Yu +5 more
semanticscholar +1 more source
Multibeam and multipolarization antenna
2006 First European Conference on Antennas and Propagation, 2006The design of a novel reconfigurable antenna for MIMO systems is presented. Simulation and experimental results shows its capabilities in a multibeam reconfiguration in a 4? steradians environment. It can allow an enhancement in wireless communication employing multipath channel combining with a radiation pattern diversity.
Sarrazin, Julien +3 more
openaire +2 more sources
Low-Profile Multibeam Antenna Based on Modulated Metasurface
IEEE Transactions on Antennas and Propagation, 2023Linearly polarized (LP) multiport multibeam antennas (MBAs) based on modulated metasurface (MTS) are presented in this article. A key challenge for MTS to generate multiple independent beams is the mutual interference of different impedance modulations ...
Yubo Wen, P. Qin, S. Maci, Y. Guo
semanticscholar +1 more source
IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450), 2004
One of the most difficult problems in scanning antenna technology is the realization of wide angle scanning. The proposed architecture seems to overcome the difficulties of realizing complex antennas, and offers high efficiency with wide-angle scanning capabiliy and with (almost) indentical beams regardless of scanning angle.
Herscovici, Naftali, Šipuš, Zvonimir
openaire +2 more sources
One of the most difficult problems in scanning antenna technology is the realization of wide angle scanning. The proposed architecture seems to overcome the difficulties of realizing complex antennas, and offers high efficiency with wide-angle scanning capabiliy and with (almost) indentical beams regardless of scanning angle.
Herscovici, Naftali, Šipuš, Zvonimir
openaire +2 more sources
Optimization of Multibeam Antennas Employing Generalized Joined Coupler Matrix
IEEE Transactions on Antennas and Propagation, 2023Currently, there is increasing interest in analog multibeam antennas whose beams can be flexibly steered to arbitrary directions. In a previous paper, we presented the theoretical framework for synthesizing individually steerable multiple beams using ...
Charles A. Guo +4 more
semanticscholar +1 more source
A Miniaturized Planar Multibeam Antenna for Millimeter-Wave Vehicular Communication
IEEE Transactions on Vehicular Technology, 2023Existing millimeter-wave beamforming network-based multibeam antennas usually suffer from complex configuration and bulky size, which limit their applications on a vehicle.
C. Ma, B. Xiang, S. Zheng, Y. Pan
semanticscholar +1 more source
A Comprehensive Deep Learning-Based Outlier Removal Method for Multibeam Bathymetric Point Cloud
IEEE Transactions on Geoscience and Remote Sensing, 2023To address the drawbacks that current multibeam bathymetric outlier removal methods lack repeatability, often require parameter adjustment for different regions, still require a lot of manual labor, and offer limited scalability, a deep learning-based ...
Jiawei Long, Hongmei Zhang, Jianhu Zhao
semanticscholar +1 more source
Two-Dimensional Wide-Angle Multibeam Flat GRIN Lens With a High Aperture Efficiency
IEEE Transactions on Antennas and Propagation, 2023High aperture efficiency 2-D multibeam flat gradient index (GRIN) lenses are developed in this work. New methods based on bifocal analysis are found to determine the refractive index profile of the lens and feed positions along a circular feed locus to ...
Li-zhao Song +5 more
semanticscholar +1 more source
Ka-Band Multibeam Patch Antenna Array Fed by Spoof-Surface-Plasmon-Polariton Butler Matrix
IEEE Transactions on Antennas and Propagation, 2023A novel Ka-band spoof-surface-plasmon-polaritons (SSPPs) Butler-matrix-fed multibeam patch antenna array is proposed. An SSPPs-fed single-layered microstrip patch antenna with suppressed cross-polarization is investigated acting as the radiator. By using
Di Cao, Yujian Li, Junhong Wang
semanticscholar +1 more source