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- W2088049046 abstract "Abstract We are developing and testing active baluns and electrically short dipoles for possible use as the primary wide band receiving elements in the low-frequency array (LOFAR) for long wavelength radio astronomy. Several dipoles of various designs and dimensions have been built and tested. Their useful range occurs when the dipole arms are approximately 1 8 to one wavelength long and the feedpoint is less than 1 2 wavelength above ground. An eight-element NRL LOFAR test array (NLTA) interferometer has been built and fringes have been observed from the brightest celestial sources in the frequency range from 10 to 50 MHz. The antenna temperatures vary from about 10% to 100% of the average brightness temperature of the galactic background. With these parameters it is easy to make the amplifier noise levels low enough that final system temperature is dominated by the galactic background." @default.
- W2088049046 created "2016-06-24" @default.
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- W2088049046 date "2004-12-01" @default.
- W2088049046 modified "2023-09-26" @default.
- W2088049046 title "LOFAR antenna development and initial observations of solar bursts" @default.
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- W2088049046 doi "https://doi.org/10.1016/j.pss.2004.09.014" @default.
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