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The Low Frequency Instrument in the ESA Planck mission
A. Mennella, M. Bersanelli, B. Cappellini +8
Measurements of the cosmic microwave background (CMB) allow high precision observation of the cosmic plasma at redshift z~1100. After the success of the NASA satellite COBE, that i…
Advanced pseudo-correlation radiometers for the Planck-LFI instrument
A. Mennella, M. Bersanelli, R. C. Butler +34
The LFI (Low Frequency Instrument) on board the ESA Planck satellite is constituted by an array of radiometric detectors actively cooled at 20 K in the 30-70 GHz frequency range in…
Planck Low Frequency Instrument: Beam Patterns
M. Sandri, M. Bersanelli, C. Burigana +8
The Low Frequency Instrument on board the ESA Planck satellite is coupled to the Planck 1.5 meter off-axis dual reflector telescope by an array of 27 corrugated feed horns operatin…
Advanced simulation techniques for straylight prediction of high performance mm-wave reflecting telescope
M. Sandri, F. Villa, M. Bersanelli +3
The prediction of the antenna radiation pattern can be extremely complex for antenna system composed of several reflector surfaces. Typically, at mm-wavelengths, telescopes are com…
PLANCK/LFI: an Advanced Multi-beam High Performance mm-wave Optics for Space Applications
F. Villa, M. Sandri, M. Bersanelli +5
The Low Frequency Instrument (LFI) is one of the two instruments onboard the ESA PLANCK satellite foreseen to be launched in 2007. The LFI will image the Cosmic Microwave Backgroun…