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2-D Multibeam Leaky-Wave Antenna Based on Modified Luneburg Lens
IEEE Antennas and Wireless Propagation LettersIn this letter, a multibeam leaky-wave antenna (LWA) based on a modified Luneburg lens (LL) beamforming network is proposed. The antenna performs a simple structure and low profile with 2-D beam scanning.
Siyuan Lei +4 more
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Single-Feed Multibeam Conformal Transmitarrays With Phase and Amplitude Modulations
IEEE Antennas and Wireless Propagation Letters, 2022Single-feed multibeam conformal transmitarrays using a superposition method are presented in this letter. The arrays consist of ultrathin Huygens elements with independent amplitude and phase manipulations. Three cylindrical conformal transmitarrays with
Li-zhao Song, Xuan Wang, P. Qin
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IEEE Transactions on Antennas and Propagation, 2022
In this article, a differentially fed dual-polarized dielectric resonator antenna (DRA) subarray excited by a substrate integrated waveguide (SIW) cavity is proposed.
Chao Chen, Jixin Chen, W. Hong
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In this article, a differentially fed dual-polarized dielectric resonator antenna (DRA) subarray excited by a substrate integrated waveguide (SIW) cavity is proposed.
Chao Chen, Jixin Chen, W. Hong
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Stepped Waveform Time-Modulated Multibeam Array With Beam Suppression Functionality
IEEE Antennas and Wireless Propagation LettersTime-modulated array (TMA) naturally generates a large number of sidebands to achieve multibeam radiation. Conventional multibeam TMAs using rectangular modulation signals lack design flexibility, and recent high-flexibility designs are mostly ...
Qiaoyu Chen +5 more
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An E-Plane-Focused Triple-Layer Multibeam Luneburg Lens Antenna for 5G Millimeter-Wave Applications
IEEE Antennas and Wireless Propagation Letters, 2022A triple-layer multibeam Luneburg lens antenna (MLLA) at the millimeter-wave band is proposed. The proposed lens features a triple-layer all-dielectric cylindrical structure.
Xi Wang, Yongsheng Pan, Yuandan Dong
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IEEE Antennas and Wireless Propagation Letters, 2022
This letter presents a wideband three-dimensional (3-D)-printed circularly polarized (CP) ultrathin dielectric slab waveguide (DSW) Luneburg lens (LL) with multibeam application in X-band.
Siyuan Lei +4 more
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This letter presents a wideband three-dimensional (3-D)-printed circularly polarized (CP) ultrathin dielectric slab waveguide (DSW) Luneburg lens (LL) with multibeam application in X-band.
Siyuan Lei +4 more
semanticscholar +1 more source
A Multibeam Cassegrain Antenna
1975 5th European Microwave Conference, 1975This paper deals with generation of a multibeam pattern for three-dimensional radar surveillance by a stacked feed horn system installed in a Cassegrain antenna. Although its effective f/D-ratio is relatively high compared with the corresponding one of the primarily feed paraboloid, lateral displacement of feed horns in the focal plane results in ...
H. Gniss, E. Zocher
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Multiuser decoding for multibeam systems
IEEE Transactions on Vehicular Technology, 2000An iterative multiuser decoding algorithm for co-channel BPSK/QPSK users in a multibeam system is presented. The approach can be applied to the return link of multibeam satellites and to terrestrial systems with sectored base-station antennas. It allows the reuse of the same spectrum in each beam.
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Journal of the Structural Division, 1969
Simply supported multibeam bridges with elements of solid or box section are considered. The structure is idealized as a series of discrete beams, which may include edge beams, joined by longitudinal hinges. The structure is analyzed by a computer-oriented direct flexibility technique, using harmonic analysis to reduce the two-dimensional problem to a ...
Graham H. Powell +2 more
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Simply supported multibeam bridges with elements of solid or box section are considered. The structure is idealized as a series of discrete beams, which may include edge beams, joined by longitudinal hinges. The structure is analyzed by a computer-oriented direct flexibility technique, using harmonic analysis to reduce the two-dimensional problem to a ...
Graham H. Powell +2 more
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1969 International Electron Devices Meeting, 1969
CRT devices, both for photorecording and real time display applications, can be improved in certain of their characteristics by utilizing a number of electron beams simultaneously modulated in the tube. A plurality of beams, when properly generated, focused and deflected, will display information with writing speed, video band-width and brightness ...
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CRT devices, both for photorecording and real time display applications, can be improved in certain of their characteristics by utilizing a number of electron beams simultaneously modulated in the tube. A plurality of beams, when properly generated, focused and deflected, will display information with writing speed, video band-width and brightness ...
openaire +1 more source