Results 211 to 220 of about 18,390 (268)
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Annales Des Télécommunications, 1997
With the continually increasing demand for bandwidth, and the development of components for higher and higher frequencies, millimeter-wave systems are finding numerous applications of a commercial nature rather than being limited to military and scientific applications only.
Ananjan Basu, Tatsuo Itoh
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With the continually increasing demand for bandwidth, and the development of components for higher and higher frequencies, millimeter-wave systems are finding numerous applications of a commercial nature rather than being limited to military and scientific applications only.
Ananjan Basu, Tatsuo Itoh
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Millimeter-wave-detected, millimeter-wave optical polarization spectroscopy
The Journal of Chemical Physics, 2005We report a new form of microwave optical double-resonance spectroscopy called millimeter-wave-detected, millimeter-wave optical polarization spectroscopy (mmOPS). In contrast to other forms of polarization spectroscopy, in which the polarization rotation of optical beams is detected, the mmOPS technique is based on the polarization rotation of ...
Adam H, Steeves +3 more
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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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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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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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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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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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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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