Results 281 to 290 of about 29,016 (334)
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Radar image of corner reflector
IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450), 2004In this paper, a near field range will be used to measure the RCS of corner reflector. The technique of ISAR will be used to analyze the image of corner reflector. The far field corner reflector RCS value and its image will be generated by the developed software package. The test results from near field to far field will be compared and discussed.
null Dau-Chyrh Chang +1 more
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Corner cube reflector for cryogenic interferometric use
Applied Optics, 1986Design, manufacturing, and adjustment procedures for a corner cube reflector used in a helium-cooled Michelson spectrometer for the wavenumber range from 50 to 500 cm−1 are presented. This retroreflector is composed of three aluminum mirrors. Performance tests at room temperature and at liquid-helium temperature demonstrate that the alignment of the ...
R, Hofmann +2 more
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Proceedings of the IRE, 1940
A beam antenna called the corner, V, or sphenoidal reflector type is described. This antenna consists essentially of a driven radiator or dipole and a reflector constructed of two flat, conducting sheets, or their electrical equivalent, which meet at an angle forming a corner. The radiator is usually located in the plane bisecting the corner angle. The
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A beam antenna called the corner, V, or sphenoidal reflector type is described. This antenna consists essentially of a driven radiator or dipole and a reflector constructed of two flat, conducting sheets, or their electrical equivalent, which meet at an angle forming a corner. The radiator is usually located in the plane bisecting the corner angle. The
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Simple Model of Corner Reflector Phenomena
Applied Optics, 1971The principle of cube corner reflector operation is simple, and a careful examination of operational details is valuable in promoting an understanding of the potentials and limitations in reflector use. This paper describes an easily visualized model by which these principles may be understood.
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Using corner reflectors for altimetry calibration
2023This is a joint presentation from 2 submitted abstracts: Abstract from: Radar Altimetry Calibration With Corner Reflectors: Current Status And Future Plans by Gibert et al. (see details in the corresponding poster) The instrumental performance of radar altimeters in terms of range and datation measurements has traditionally been monitored by flying ...
(leading authors), Ferran Gibert and Claire Maraldi +14 more
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Wide-angle flat metasurface corner reflector
Applied Physics Letters, 2018In this paper, a wide-angle flat corner reflector based on the multiple phase gradient modulated metasurface is proposed and demonstrated. Through designing the related gradient phase, the propagation direction of the reflected electromagnetic wave is just opposite to the propagation of the incidence wave based on the generalized version of the ...
Maochang Feng +6 more
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Uncompensated Corner-Reflector Interferometer*
Journal of the Optical Society of America, 1957Analysis is made of the effect of omitting the compensating plate in a corner-reflector interferometer. It is concluded that a noncompensated instrument has disadvantages when compared to a compensated one, but when properly adjusted it may still be useable with a photoelectric detector. The flux is integrated over rectangular field stops.
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Three-dimensional corner reflector antenna
IEEE Transactions on Antennas and Propagation, 1974A reflector antenna utilizing three planar reflectors and a 3/4 λ-unipole radiator is proposed. Calculations based on image- and EMF-methods predict that the gain is about 5 dB greater than that of the two-dimensional corner reflector antenna, and that the input impedance is roughly between 50 and 75 Ω.
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Diffractional losses in corner reflectors
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005., 2005We present the analysis of fundamental losses of optical power in dielectrical corner reflectors, which are now planned to replace spherical mirrors in the next generation of large-scale Earth-based gravitational wave detectors. The mechanism of losses is diffractional scattering of light beam used in Fabry-Perot resonator on the edge of corner ...
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ANTENNA WITH RECONFIGURABLE PLASMA CORNER REFLECTOR
ВЕСТНИК ВОРОНЕЖСКОГО ГОСУДАРСТВЕННОГО ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА, 2023Рассматривается антенна с реконфигурируемым рефлектором. Ее рабочие частоты расположены в диапазоне UHF от 637 до 648 МГц. В качестве излучателя используется плазменная вибраторная антенна. Рефлектор является уголковым с углом между стенками 60°. Стенки рефлектора выполнены из плазменных элементов, представляющих собой газоразрядные трубки, способные ...
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