DocumentCode :
997476
Title :
Gain measurements of standard electromagnetic horns in the K and Ka bands
Author :
Wrixon, Gerad T. ; Welch, William J.
Author_Institution :
Crawford Hill Lab., Bell Labs., Inc., Holmdel, N. J.
Volume :
20
Issue :
2
fYear :
1972
fDate :
3/1/1972 12:00:00 AM
Firstpage :
136
Lastpage :
142
Abstract :
Measurements are described in which the gains of standardhorns in the 
and 
bands were determined at a number of wavelengths. The two-antenna method was used. It is believed, after a detailed error analysis, that the gain is known within a limiting error of about 0.05 dB at each wavelength measured. A method is described for measuring the ohmic losses in the horn, So that the measured gains may be compared with theoretical estimates. Gain values calculated from the formula of Schelkunoff and Friis and corrected for ohmic losses agree within about 0.1 dB on the average with the measured gains.
and bands were determined at a number of wavelengths. The two-antenna method was used. It is believed, after a detailed error analysis, that the gain is known within a limiting error of about 0.05 dB at each wavelength measured. A method is described for measuring the ohmic losses in the horn, So that the measured gains may be compared with theoretical estimates. Gain values calculated from the formula of Schelkunoff and Friis and corrected for ohmic losses agree within about 0.1 dB on the average with the measured gains.Keywords :
Antenna measurements; Horn antennas; Measurement standards; Millimeter-wave measurements; Antenna arrays; Extraterrestrial measurements; Frequency; Gain measurement; K-band; Laboratories; Loss measurement; Measurement standards; 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.1972.1140183
Filename :
1140183
Link To Document :
