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Techniques for millimetre-wave imaging
SPIE Proceedings, 2004This paper reviews the formation of an image with coherent and incoherent radiation. It discusses the various mm-wave methods for electronic beam-forming and beam-steering such as phased array, leaky-wave antennas, up-conversion, tapped delay lines and digital beam-forming techniques.
Alan H. Lettington +4 more
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Millimetre-wave spectrum of CF3Br
Journal of the Chemical Society, Faraday Transactions 2, 1982The millimetre-wave rotational spectra of CF379Br and CF381Br have been measured in the ground and low-lying excited states. Analysis of the ground-state spectra has yielded precise values of the rotational and centrifugal distortion constants, as well as bromine nuclear quadrupole coupling constants.
John H. Carpenter +2 more
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Technology for millimetre wave systems
IEEE International Conference on Communications, Including Supercomm Technical Sessions, 1990Summary form only given. The use of the millimeter-wave spectrum above 30 GHz for telecommunications offers considerable bandwidth for broadband services, but power limitations and rain attenuation constrain its prospects to small 'cell' or short-hop systems.
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The millimetre wave future of telecommunications
Physics Bulletin, 1969There now appears little doubt that telecommunications with millimetric microwaves will play a leading part in the transmission of visual, audio and digital information. The prospects for the millimetric region of the electromagnetic spectrum appear much more attractive than for the wavelengths at which lasers can operate, for a number of reasons.
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Tenth International Conference on Antennas and Propagation (ICAP), 1997
A modern innovative measurement system is presented. The system allows for the measurement of millimetre wave propagation in urban and sub-urban areas. The system was expressly designed to allow easy propagation modelling. These features were obtained by acquisition in a georeferred basis of measured data in order to facilitate their comparison with ...
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A modern innovative measurement system is presented. The system allows for the measurement of millimetre wave propagation in urban and sub-urban areas. The system was expressly designed to allow easy propagation modelling. These features were obtained by acquisition in a georeferred basis of measured data in order to facilitate their comparison with ...
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Millimetre wave on-wafer measurements
2001Several current and planned scientific, commercial, and military applications require millimetre wave (30-300 GHz) components, for example very low noise receivers. In Millimetre Wave Laboratory of Finland - MilliLab, VTT Information Technology have been developed state-of-the-art measurement facilities for on-wafer S-parameter, noise figure, gain, and
Lahdes, Manu +7 more
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A millimetre-wave pyroelectric detector
16th International Conference on Infrared and Millimeter Waves, 1991A pyroelectric detector has been built and characterised for operation within W-band. The various characteristics reported include detectivity, responsivity, NEP, polarisation sensitivity, dynamic range, linearity, and reflectivity (vswr). The pyroelectric detector performs well at these wavelengths and as the detector is inexpensive to build, and is ...
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Silicate dielectric ceramics for millimetre wave applications
Journal of the European Ceramic Society, 2021Aleksander Gurlo +2 more
exaly
Journal of the Institution of Electrical Engineers, 1955
W.E. Willshaw +2 more
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W.E. Willshaw +2 more
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