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Measurements of rain‐induced polarization rotation at 30.9 GHz
Author(s) -
Semplak R. A.
Publication year - 1974
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs009i004p00425
Subject(s) - polarization (electrochemistry) , physics , rotation (mathematics) , linear polarization , millimeter , rotation period , optics , geodesy , computational physics , geology , geometry , mathematics , astrophysics , laser , stars , chemistry
An experiment to determine the rotation of linearly polarized millimeter waves by rain is described; the results obtained at a frequency of 30.9 GHz, over a 2.6‐km propagation path in New Jersey, during the spring‐fall period of 1971, are discussed. Cumulative distributions of rain‐induced rotation of the vertically polarized electric vector, and of the associated cross‐polarized component, are presented. The polarization rotation shows a strong relationship with the cross‐path wind. For 0.01% of the time, during the measuring period, the rotation of the electric vector exceeds four degrees, equivalent to a cross component down 23 dB; for 0.001% of the measuring period, the latter value was about 18 dB.