Tropical raindrop size distribution for the prediction of rain attenuation of microwaves in the 10-40 GHz band

Author

Tat-Soon Yee ; Kooi, Pang-Shyan ; Leong, Mook-Seng ; Li, Le-Wei

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

Volume

49

Issue

1

fYear

2001

fDate

1/1/2001 12:00:00 AM

Firstpage

80

Lastpage

83

Abstract

This paper describes the measurement of microwave rain attenuation over a ten-year period (1988-1998) in Singapore. The rain attenuation of (vertically and horizontally polarized) microwaves at 15, 21, and 38 GHz propagating over a path length of approximately 1.1 km were recorded. A negative-exponential raindrop size distribution model is then developed by fitting of the experimental data with the total extinction cross sections of oblate spheroidal raindrops computed from the T-matrix approach. Graphs for attenuation versus rain rate (at selected frequencies) and for attenuation versus frequency (at selected rain rates) are also given

Keywords

electromagnetic wave absorption; electromagnetic wave polarisation; exponential distribution; matrix algebra; microwave propagation; rain; tropospheric electromagnetic wave propagation; 1.1 km; 10 GHz; 10 year; 15 GHz; 21 GHz; 38 GHz; EHF; SHF; Singapore; T-matrix; communication links; horizontally polarized microwaves; microwave rain attenuation; negative-exponential raindrop size distribution model; oblate spheroidal raindrops; path length; rain attenuation prediction; rain rates; total extinction cross sections; tropical raindrop size distribution; vertically polarized microwaves; Attenuation measurement; Distributed computing; Frequency; Microwave communication; Microwave measurements; Microwave propagation; Polarization; Radar signal processing; Rain; Size measurement;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.910533

Filename

910533