Results 311 to 320 of about 2,797,043 (365)
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Laser-Millimeter Wave Techniques
Applied Optics, 1971The use of millimeter techniques with lasers has resulted in the stabilization of a laser to an absolute frequency standard. Also, a high resolution infrared spectrometer with the characteristics of a microwave spectrometer has been developed.
V J, Corcoran, W T, Smith
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Millimeter-wave and Terahertz Spectrum for 6G Wireless
Computer Communications and Networks, 2021With the standardization of 5G, commercial millimeter wave (mmWave) communications has become a reality despite all the concerns about the unfavorable propagation characteristics of these frequencies. Even though the 5G systems are still being rolled out,
Shuchi Tripathi +3 more
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Study of millimeter waves in 5G
2021 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom), 2021The millimeter waves correspond to frequencies in the range 30-300 GHz and, implicitly, to wavelengths in the range 1-10 mm. They will underpin the new generation of mobile communications systems, offering much higher bandwidth, lower latency and the ability to serve a larger amount of users.
Ana-Maria Nedelcu +2 more
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Proceedings of the IEEE, 1985
This paper provides a brief overview of the field of near-millimeter waves and serves as an introduction to the five following papers. The nomenclature and spectral regions are defined and a historical summary is given. Brief comments are then given about the contents of the succeeding articles.
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This paper provides a brief overview of the field of near-millimeter waves and serves as an introduction to the five following papers. The nomenclature and spectral regions are defined and a historical summary is given. Brief comments are then given about the contents of the succeeding articles.
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Millimeter-Wave Imaging Sensor
SPIE Proceedings, 1986A dual polarized 3-mm radiometer system, with a mechanically scanned antenna, has been built for use on a small aircraft or RPV to produce near real-time moderate resolution (0.5°) images of the ground. One of the main advantages of this passive imaging sensor is that it is able to provide surveillance information through clouds, smoke, and dust when ...
William J. Wilson +3 more
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A Wideband Dual-Polarized Antenna for Millimeter-Wave Applications
IEEE Transactions on Antennas and Propagation, 2021A wideband dual-polarized magneto-electric (ME) dipole for millimeter waveband applications is presented. The ME dipole consists of four shorted patches, which are fed by two pairs of T-shaped probes orthogonally oriented on the same layer.
Xinfeng Dai, K. Luk
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Proceedings of the IEEE, 1962
The characteristics of a number of different kinds of masers are reviewed to estimate their usefulness in the region between one and a tenth millimeter. An estimate of the maximum power output for these systems is made and compared with the output to be expected from mixing two optical signals in a nonlinear dielectric and on a photocathode ...
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The characteristics of a number of different kinds of masers are reviewed to estimate their usefulness in the region between one and a tenth millimeter. An estimate of the maximum power output for these systems is made and compared with the output to be expected from mixing two optical signals in a nonlinear dielectric and on a photocathode ...
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IEEE Transactions on Antennas and Propagation
A millimeter-wave beam-steerable antenna by controlling the phase difference between the feeding ports is proposed and applied to achieve a wide-angle beam-scanning millimeter-wave phased array. The antenna element consists of a square patch and a square
Junqi Wang +3 more
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A millimeter-wave beam-steerable antenna by controlling the phase difference between the feeding ports is proposed and applied to achieve a wide-angle beam-scanning millimeter-wave phased array. The antenna element consists of a square patch and a square
Junqi Wang +3 more
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Printed millimeter-wave reflectarrays
Annales Des Télécommunications, 2001Des structures periodiques et quasi-periodiques, imprimees sur un substrat dielectrique peuvent etre employees pour commander les proprietes de reflexion et de transmission des ondes incidentes en fonction de la structure geometrique. Ceci peut etre realise pratiquement independamment pour les deux polarisations.
Dietmar Pilz, Wolfgang Menzel
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Joint Communication and Localization in Millimeter Wave Networks
IEEE Journal on Selected Topics in Signal Processing, 2021Joint communication and localization will be a key in beyond 5G networks for emerging context-aware applications such as Internet-of-Things and autonomous vehicles.
Girim Kwon +3 more
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