Results 11 to 20 of about 673,683 (345)

Ultra Wideband Antennas [PDF]

open access: yesRecent 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
openaire   +5 more sources

An Ultra-Wideband Vivaldi Antenna System for Long-Distance Electromagnetic Detection

open access: yesApplied Sciences, 2022
Enlarging or reducing the antenna beam width of antennas can improve the positioning capability of detection systems. A miniaturized and easily fabricated ultra-wideband (UWB) antenna system for long-distance electromagnetic detection is proposed in this
Jinjing Ren   +5 more
doaj   +1 more source

Wideband Epidermal Antenna for Medical Radiometry [PDF]

open access: yesSensors, 2020
Microwave thermometry is a noninvasive and passive technique for measuring internal body temperature. Wearable compact antennas, matched to the specific body area, are required for this method. We present a new epidermal wideband antenna for medical radiometry. The double asymmetric H-shaped slot antenna was designed to be matched to different parts of
Germán León   +4 more
openaire   +7 more sources

Near-Field Wideband Beamforming for Extremely Large Antenna Arrays [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2021
The natural integration of extremely large antenna arrays (ELAAs) and terahertz (THz) communications can potentially establish Tbps data links for 6G networks. However, due to the extremely large array aperture and wide bandwidth, a new phenomenon termed
Mingyao Cui, Linglong Dai
semanticscholar   +1 more source

A Compact Planar Ultra-Wideband Array Antenna

open access: yesInternational Journal of Antennas and Propagation, 2023
Ultra-wideband (UWB) antennas have recently gained prominence in communication, radar technology, and electronic warfare domains. The quick development of these antennas is due to the wide bandwidth requirements of pulse radar, ground penetrating radar ...
Junli Zhu   +3 more
doaj   +1 more source

Wideband Circularly Polarized Antenna With Reconfigurable 2-Dimensional Axial Ratio Beamwidth

open access: yesIEEE Access, 2021
This paper proposes a wideband circularly polarized antenna with a reconfigurable 2-dimensional axial ratio. For mobile satellite communication, the low profile CP antenna with wide axial ratio scanning and a wide frequency bandwidth is essential.
Jeong-Wook Kim   +5 more
doaj   +1 more source

Wideband Multiport Antennas

open access: yesSensors, 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 Seyyed Esfahlan   +3 more
openaire   +5 more sources

A Compact Planar Monopole UWB MIMO Antenna for Short-Range Indoor Applications

open access: yesSensors, 2023
A compact, four-element planar MIMO (Multiple Input, Multiple Output) antenna that operates in an ultra-wideband is presented for diversity application.
Shanmugam Kolangiammal   +2 more
doaj   +1 more source

Dual-band (28/38 GHz) Wideband MIMO Antenna for 5G Mobile Applications

open access: yesIEEE Access, 2022
A dual-band wideband composite patch antenna constructed from a modified circular primary patch and secondary parasitic patch element is presented in this work. A microstrip feed line is employed to inset-feed the primary patch.
A. Farahat, K. Hussein
semanticscholar   +1 more source

Gain and isolation enhancement of a wideband MIMO antenna using metasurface for 5G sub-6 GHz communication systems

open access: yesScientific Reports, 2022
This work proposes a compact metasurface (MS)-integrated wideband multiple-input multiple-output (MIMO) antenna for fifth generation (5G) sub-6 GHz wireless communication systems.
Md. Mhedi Hasan   +7 more
semanticscholar   +1 more source

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