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
Link To Document :
