Results 191 to 200 of about 1,330,404 (244)
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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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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, 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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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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IEEE Journal of Solid-State Circuits, 2005
This paper describes the design and modeling of CMOS transistors, integrated passives, and circuit blocks at millimeter-wave (mm-wave) frequencies. The effects of parasitics on the high-frequency performance of 130-nm CMOS transistors are investigated, and a peak f/sub max/ of 135 GHz has been achieved with optimal device layout.
Chinh H. Doan +3 more
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This paper describes the design and modeling of CMOS transistors, integrated passives, and circuit blocks at millimeter-wave (mm-wave) frequencies. The effects of parasitics on the high-frequency performance of 130-nm CMOS transistors are investigated, and a peak f/sub max/ of 135 GHz has been achieved with optimal device layout.
Chinh H. Doan +3 more
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Millimeter-Wave Integrated Circuits
IEEE Transactions on Microwave Theory and Techniques, 1968Monolithic millimeter-wave integrated circuits have been designed and fabricated on semi-insulating GaAs substrates using microstrip transmission lines. Circuits using hybrid techniques have also been constructed on quartz and ceramics. This paper shows that microstrip-line integrated circuits are feasible at millimeter-wave frequencies.
S. Mao, S. Jones, G.D. Vendelin
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Physics Today, 1950
Electromagnetic radiation, an inexhaustable natural resource, plays an extremely important part in modern technology and living. We use very short wavelength radiation, that is, x-rays, in searching for otherwise hidden defects. We use longer wavelength radiation, that is, light, to see by. We can take photographs with infrared radiation.
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Electromagnetic radiation, an inexhaustable natural resource, plays an extremely important part in modern technology and living. We use very short wavelength radiation, that is, x-rays, in searching for otherwise hidden defects. We use longer wavelength radiation, that is, light, to see by. We can take photographs with infrared radiation.
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Millimeter-wave radiometric imaging
International Symposium on Antennas and Propagation Society, Merging Technologies for the 90's, 1990The capabilities of radiometric imaging of the environment with the German Aerospace Research Establishment (DLR) modular linescanner system are demonstrated. Efficient information enhancement algorithms have been shown to improve the data interpretation and evaluation.
Süß, H., Grüner, K.
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MILLIMETER-WAVE SPECTROSCOPY OF METHOXYMETHANOL
Proceedings of the 71st International Symposium on Molecular Spectroscopy, 2016Methoxymethanol (CH_3OCH_2OH), a ten atoms molecule, is a very interesting candidate for the detection in the interstellar medium since it can be formed by the reaction between both possible radicals of methanol: CH_3O (already detected in the ISM) and CH_2OH.
Motiyenko, R. A. +3 more
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Millimeter Wave Subscriber Loops
IEEE Journal on Selected Areas in Communications, 1983Advantages and drawbacks of using millimeter waves in the telephone and data subscriber distribution network are listed. Fields in which it seems attractive to use millimeter wave loops are examined. For such applications, cost and reliability constraints led to the design of very simple systems.
Philippe Dupuis +3 more
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