Results 11 to 20 of about 18,238 (168)
EURASIP Journal on Advances in Signal Processing, 2005 Summary: The application of ultra-wideband (UWB) technology to low-cost short-range communications presents unique challenges to the communications engineer. The impact of the US FCC's regulations and the characteristics of the low-power UWB propagation channels are explored, and their effects on UWB hardware design are illustrated.
Pozar David M +2 more
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CPW Fed UWB Antenna by EBGs With Wide Rectangular Notched-Band
IEEE Access, 2016 Ultra-wideband (UWB) antennas with wide rectangular notched-band are proposed in this paper. The rectangular notched-band design is realized by placing dual mushroom-type electromagnetic-bandgap (EBG) structures on the CPW feeding line.
Lin Peng +4 more
doaj +1 more source
An Electrically Tunable Terahertz Filter Based on Liquid-Crystal-Filled Slits with Wall Corrugations
Photonics, 2022 We propose a type of hollow planar waveguide with corrugated walls, which can realize electrically tunable terahertz (THz) filtering by filling the slit with liquid crystals. When the THz signals propagate in a planar waveguide with periodic corrugations,
Shi-Yang Zhang +6 more
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Recent Patents on Electrical Engineeringe, 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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Nanoscale Research Letters, 2018 Terahertz electromagnetic (EM) wave components usually have a single function, such as they can only convert the polarization state of an incident wave or absorb the incident energy, which would be a limitation for their applications.
Lin Peng, Xing Jiang, Si-min Li
doaj +1 more source
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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Fully Conventional Anchor-Free Siamese Networks for Object Tracking
IEEE Access, 2019 Siamese network have been extensively applied in the tracking field because of its huge speed advantage and great precision performance in solving the tracking problems. In this paper, we propose an efficient framework for real-time object tracking which
Guang Han +4 more
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Feature Fusion and Adversary Occlusion Networks for Object Detection
IEEE Access, 2019 Current object detection techniques have difficulties in detecting small objects and a low level of accuracy in detecting occluded objects. To solve these problems, this paper proposes an object detection framework named FFAN which is based on Faster R ...
Guang Han +4 more
doaj +1 more source
Remote Sensing, 2022 Target position estimation is one of the important research directions in array signal processing. In recent years, the research of target azimuth estimation based on graph signal processing (GSP) has sprung up, which provides new ideas for the Direction
Kefei Liao +3 more
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Adapting Dynamic Appearance for Robust Visual Tracking
IEEE Access, 2017 This paper designs a robust discriminative tracking method based on correlation filter and key point matching, the highlight of which is the ability to adapt appearance changes.
Guang Han +4 more
doaj +1 more source