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
fDate :
10/1/1965 12:00:00 AM
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;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19650203
