Citation
Abstract
The gain uncertainty of an array of antennas is derived in terms of the gain uncertainty of the individual elements. For the case where the gain uncertainties of the individual elements are about equal, the gain uncertainty (uncorrelated errors) of the array is less than that of the individual elements. In the DSN, the gain uncertainty of an array composed of a 64-meter antenna and one or more 34-meter antennas is most sensitive to the uncertainty of the gain of the 64-meter antenna. For example, a 64-meter antenna (G = 61.7 +0.1 dB) and a 34-meter antenna (G2 &= 56.1 +0.3 dB) result in an array with G 62.8 ±0.1 dB (uncorrelated), +0.15 dB (correlated), For this example, the array gain uncertainty is not significantly affected by the smaller element gain tolerance.
Details
- Volume
- 42-66
- Published
- December 15, 1981
- Pages
- 186–190
- File Size
- 257.9 KB