DocumentCode
867260
Title
Self-balancing microwave comparison radiometer
Author
Oranc, H.S. ; Shearman, E.D.R.
Author_Institution
University of Birmingham, Department of Electronic and Electrical Engineering, Birmingham, UK
Volume
1
Issue
8
fYear
1965
fDate
10/1/1965 12:00:00 AM
Firstpage
222
Lastpage
224
Abstract
A 3cm radiometer evolved from Allred´s 3 Mc/s system is described. The sum and difference of the voltages from an aerial and a controllable noise source are formed in a magic-T hybrid and correlated. The correlator output, which is zero only for equal aerial and reference powers, is used to adjust the reference to equality. Lunar-eclipse observations are described.
Keywords
measurement by electrical methods; radio receivers; thermal variables measurement;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19650203
Filename
4205811
Link To Document