Journal ArticleDOI
Rain Attenuation at 103 GHz in Millimeter Wave Ranges
T Utsunomiya,M. Sekine +1 more
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TLDR
In this paper, a millimeter wave propagation experiment at 103 GHz (2.9 mm) on a propagation path of 390 m was conducted and the results were compared with the rain attenuation calculations from the Marshall-Palmer, Best, Joss-Thomas-Waldvogel and Weibull distributions for raindrop-size.Abstract:
We have conducted a millimeter wave propagation experiment at 103 GHz (2.9 mm) on a propagation path of 390 m. The results were compared with the rain attenuation calculations from the Marshall-Palmer, Best, Joss-Thomas-Waldvogel and Weibull distributions for raindrop-size. It has been shown that the Weibull distribution has a good agreement with the experiments.read more
Citations
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Link Budget Analysis for Terahertz Fixed Wireless Links
TL;DR: High data rates can only be transmitted via these links if transmitter and receiver antennas with very high gains are used, and this requires an adaptive control of mechanical fluctuations.
Proceedings ArticleDOI
Rain Attenuation in Millimeter Wave Ranges
Zhao Qingling,Jin Li +1 more
TL;DR: In this paper, a short-range 35 GHz radio link was used to measure rain specific attenuation with simultaneous measurement of rain rate distribution, and an empirical model derived from these measurements is suggested in order to observe and investigate the attenuation caused by rains in shortrange communications.
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Experimental comparison of terahertz and infrared data signal attenuation in dust clouds
TL;DR: Attenuation by the presence of dust degrades the IR channel but exhibits almost no measurable impact on the THz signal, and numerical simulations of THz attenuation with different dust concentrations agree with the measured results.
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Experimental comparison of performance degradation from terahertz and infrared wireless links in fog
TL;DR: A lab setup for analyzing impairments of terahertz (THz) and infrared (IR) free space links caused by local refraction index changes in the signal's propagation paths that could be induced by turbulence, particles, humidity, etc.
Journal ArticleDOI
Rain Attenuation at Millimeter Wave and Low-THz Frequencies
Fatemeh Norouzian,Emidio Marchetti,Marina Gashinova,Edward Hoare,Costas Constantinou,Peter Gardner,Mikhail Cherniakov +6 more
TL;DR: In this paper, wave attenuation through rain with different rainfall rates at millimeter wave and low-terahertz (Low-THz) ( $f = 300$ GHz) frequencies is studied.
References
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Journal ArticleDOI
Mie Scattering with Complex Index of Refraction
TL;DR: In this paper, a set of computations of exact Mie functions related to the scattering of electromagnetic waves on dielectric and partially absorbing spheres is described, and the effects of increased absorption index on the extinction and absorption cross section, on the complex amplitude, and on the intensity and polarization of the scattered flux are illustrated by means of diagrams.
Journal ArticleDOI
Weibull raindrop-size distribution and its application to rain attenuation
H. Jiang,M. Sano,Matsuo Sekine +2 more
TL;DR: In this article, a Weibull raindrop-size distribution was proposed by fitting the measurements of rainfall observed using a distrometer in Tokyo, and a propagation experiment at 103 GHz was introduced.
Proceedings ArticleDOI
Rain Attenuation 0f Centimeter, Millimeter and Submillimeter Radio Waves
Matsuo Sekine,Goran Lind +1 more
TL;DR: In this article, rain attenuation from 1 to 1000 GHz was calculated by using a Weibu11 distribution for raindrop-size, which was assumed to be caused by coalescence, drop break-up and a chain reaction process.
Journal ArticleDOI
Rain attenuation from log-normal and Weibull raindrop-size distributions
TL;DR: In this paper, rain attenuation from 1 to 1000 GHz was calculated by using both log-normal and Weibull distributions for raindrop size and the results were compared with the recent microwave measurements from 8.4 to 312.5 GHz at the rain rate R = 50 mm/h.
Proceedings ArticleDOI
Rain Attenuation from Weibull Raindrop-Size Distribution
TL;DR: In this paper, the rain attenuation from 1 to 1000 GHz was calculated by using a Weibull distribution for raindrop-size using microwave experimental measurement data from 8 to 312.5 GHz.