Results 1 to 10 of about 14,576 (298)
WBAN Channel Characteristics Between Capsule Endoscope and Receiving Directive UWB On-Body Antennas
IEEE Access, 2020 This paper presents a study on the ultra wideband (UWB) radio channel characteristics between a capsule endoscope and a directive on-body antenna in different parts of the small intestine. The study is conducted using a finite integration technique (FIT)
Mariella Sarestoniemi +5 more
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Achievable directive antenna gain measurements and modeling for 60 GHz indoor links [PDF]
Scientific ReportsHighly directive antennas may be a key component in millimeter wave links to offset their inherently high path losses. In cluttered scenarios such as Non-Line-Of-Sight (NLOS) indoor settings, antenna gain is degraded by the interaction of the channel ...
Sebastián Bruna +8 more
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Genetic Algorithm Optimization of a High-Directivity Microstrip Patch Antenna Having a Rectangular Profile [PDF]
Radioengineering, 2013 A single high-directivity microstrip patch antenna (MPA) having a rectangular profile, which can substitute a linear array is proposed. It is designed by using genetic algorithms with the advantage of not requiring a feeding network.
J.W. Jayasinghe +2 more
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IEEE Open Journal of Antennas and PropagationThe efficient series connection of planar leaky-wave antennas (LWA) to obtain directive frequency beam scanning, is proposed in this paper. Conditions for the proper performance are here derived, showing that the distance between antennas must be ...
Miguel Poveda-Garcia +4 more
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Optimum Antenna Characteristics for Maximally Harvesting Ambient RF Energy
IEEE Open Journal of Antennas and Propagation, 2022 This paper investigates the best antenna characteristics to harvest ambient RF waves maximally. The proposed approach analyzes and compares key design aspects, including multi-polarization, multi-port, multi-band, omnidirectional, quasi-isotropic, and ...
Constant M. A. Niamien
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Symmetric connectivity with directional antennas [PDF]
Computational Geometry, 2013 Let P be a set of points in the plane, representing directional antennas of angle a and range r. The coverage area of the antenna at point p is a circular sector of angle a and radius r, whose orientation is adjustable. For a given orientation assignment, the induced symmetric communication graph (SCG) of P is the undirected graph that contains the ...
Rom Aschner +2 more
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Mixtures of Multipoles—Should They Be in Your EM Toolbox?
IEEE Open Journal of Antennas and Propagation, 2022 Multipole expansions are an essential analysis tool in the foundations of the descriptions of the electromagnetic fields radiated by electric and magnetic sources. Nevertheless, practical antenna systems generally rely on them as an academic explanation,
Richard W. Ziolkowski
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IEEE Access, 2020 A gain-enhancement scheme that combines an active integrated antenna (AIA) and an optically transparent reflectarray on solar cells is proposed for CubeSat applications.
Yen-Sheng Chen +2 more
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Omni-Directional Pathloss Measurement Based on Virtual Antenna Array With Directional Antennas
IEEE Transactions on Vehicular Technology, 2023 Omni-directional pathloss, which refers to the pathloss when omni-directional antennas are used at the link ends, are essential for system design and evaluation. In the millimeter-wave (mm-Wave) and beyond bands, high gain directional antennas are widely used for channel measurements due to the significant signal attenuation.
Mengting Li +4 more
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Fabry-Perot Cavity Leaky Wave Antennas with Tunable Features for Terahertz Applications
Condensed Matter, 2020 Terahertz (THz) radiation is a very appealing band of the electromagnetic spectrum due to its practical applications. In this context, the THz generation and manipulation is an essential part of the technological development.
Silvia Tofani, Walter Fuscaldo
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