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
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