TELECOMMUNICATIONS AND RADIO ENGINEERING - 2010 Vol. 69,
No 19 		 

 

 

 

THE CONTRIBUTION OF SMALL DROPLETS TO THE SIZE DISTRIBUTION FUNCTION OF RAINDROPS: EFFECTS UPON TERAHERTZ RADIO WAVES

Y.I. Malyshenko & A.N. Roenko
A. Usikov Institute of Radio Physics and Electronics,
National Academy of Sciences of Ukraine
12, Academician Proskura St., Kharkiv 61085, Ukraine
Address all correspondence to A.N. Roenko E-mail: rk@ire.kharkov.ua

Abstract
Discussed in the paper are the model distribution functions of raindrop sizes which are most often used to analyze the operation of microwave radar and/or communication systems under rain conditions. It is shown that a great majority of the distribution functions fail to make an adequate account of the number of small raindrops. A new model function is suggested which should be useful in the shorter wavelength part of the millimeter waveband (and at terahertz frequencies), since it takes the small-size raindrop component into account.
KEY WORDS:radio meteorology; remote sensing of the Earth; radar; radio communication; size distribution function of raindrops; terahertz frequency range

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pages 1761-1774

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