DocumentCode
992656
Title
Astronomical refraction at millimeter wavelengths
Author
Davis, John H. ; Cogdell, John R.
Author_Institution
University of Texas, Austin, TX, USA
Volume
18
Issue
4
fYear
1970
fDate
7/1/1970 12:00:00 AM
Firstpage
490
Lastpage
493
Abstract
Measurements of the difference between radio and optical astronomical refraction at 
, and 2.2 mm are described. The measurement technique utilized solar limb crossing times observed with a 16-foot radio telescope. Results show the expected dependence upon atmospheric water vapor below 
mm, but radio refraction tends to approach optical refraction at the shortest wavelength.
, and 2.2 mm are described. The measurement technique utilized solar limb crossing times observed with a 16-foot radio telescope. Results show the expected dependence upon atmospheric water vapor below mm, but radio refraction tends to approach optical refraction at the shortest wavelength.Keywords
Electromagnetic refraction; Millimeter-wave radio propagation meteorological factors; Radio astronomy; Antenna measurements; Atmospheric measurements; Extraterrestrial measurements; Frequency measurement; Millimeter wave measurements; Millimeter wave technology; Optical receivers; Optical refraction; Radio astronomy; Wavelength measurement;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1970.1139717
Filename
1139717
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