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Wideband Arrays for Radio Astronomy
Author(s) -
Klemperer W. K.
Publication year - 1968
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1002/rds196835511
Subject(s) - wideband , broadband , bandwidth (computing) , radio astronomy , antenna (radio) , astronomical interferometer , radio spectrum , physics , radiation pattern , frequency band , wavelength , telecommunications , computer science , optics , interferometry , astronomy
For those radioastronomical observations that involve the recording of signals from broadband noise sources, the efficiency of the antenna as well as the shape of the antenna pattern can be significantly improved by operating over as wide a frequency band as possible. The advantages becomeparticularly prominent for arrays that extend to spacings of thousands of wavelengths. The effect of the operating bandwidth on the far‐field pattern of interferometers and rectangular arrays is investigated. The improvements that can be expected from wideband operation in various other cases are outlined.