Results 11 to 20 of about 328,962 (374)
Wideband Gyro-Amplifiers [PDF]
IEEE Transactions on Plasma Science, 2012 Gyro-amplifiers using helically corrugated waveguides have shown exceptional gain, power, bandwidth, and efficiency performance at cm and mm wavelengths. The performance of a long pulse (and therefore high vacuum) system is strongly influenced by factors other than the intrinsic bandwidth of the interaction. We shall discuss these and other challenges,
Whyte, C. G. +6 more
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Reconfigurable Polarizer Based on Bulk Dirac Semimetal Metasurface
Crystals, 2020 In this paper, we propose a reflective polarizer in terahertz regime, which utilizes the Bulk-Dirac-Semimetal (BDS) metasurface can be dynamically tuned in broadband.
Yannan Jiang, Jing Zhao, Jiao Wang
doaj +1 more source
Sensors, 2020 In this paper, a wideband four port 2–6 GHz antenna is proposed. One-, two-, and four-port antennas are implemented and characterized between 2 and 6 GHz. The isolation between the ports is improved by connecting and optimizing the ground plane sections.
Mehdi Seyyedesfahlan +3 more
openaire +5 more sources
International Journal of Antennas and Propagation, 2008 1 Electrical & Computer Engineering Department, College of Engineering, Montana State University, 610 Cobleigh Hall Bozeman, MT 59717, USA 2Department of Electrical and Computer Engineering, University of Colorado, Boulder Campus Box 425, Boulder, CO 80309-0425, USA 3The Q-Track Corporation, 515 Sparkman Drive NW, Huntsville, AL 35816, USA 4 Intel ...
James Becker +3 more
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RADIOELECTRONIC AND COMPUTER SYSTEMS, 2023 The subject of the manuscript is the algorithms for radar imaging. This research develops imaging methods and algorithms for wideband and ultrawideband active aperture synthesis systems with antenna arrays and stochastic probing signals.
S. Zhyla +16 more
semanticscholar +1 more source
Wideband Beamforming for Hybrid Massive MIMO Terahertz Communications
IEEE Journal on Selected Areas in Communications, 2021 The combination of large bandwidth at terahertz (THz) and the large number of antennas in massive MIMO results in the non-negligible spatial wideband effect in time domain or the corresponding beam squint issue in frequency domain, which will cause ...
F. Gao +4 more
semanticscholar +1 more source
Sensors, 2022 As a new radar system with improved performance, distributed multiple-input multiple-output (MIMO) radar provides a new idea for the development of netted radar.
Tianchen Hu +3 more
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An Efficient Solution to the Perspective-n-Point Problem for Camera With Unknown Focal Length
IEEE Access, 2020 To achieve lower time consumption in pose estimation of an uncalibrated camera, a novel and efficient method to the Perspective-n-Point problem (PnP) is proposed in this article.
Bingyi Zhou, Ziqiang Chen, Qinghua Liu
doaj +1 more source
T-Type Vertical Wall for Decoupling and Pattern Correction of Patch Antenna
Applied Sciences, 2022 The requirements of 5G/6G promote progress in the miniaturization of the antenna array, which promotes the development of a closely spaced decoupling technique. However, the present techniques face the common problem of beam tilt if the spacing is close.
Yiying Wang +6 more
doaj +1 more source
A reconfigurable wideband and multiband antenna using dual-patch elements for compact wireless devices [PDF]
, 2011 This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2012 IEEEA reconfigurable wideband and multiband C-Slot patch antenna with dual-patch elements is proposed and studied.
AbuTarboush, H.F. +13 more
core +2 more sources