The Low Frequency Instrument is optically interfaced with the ESA Planck telescope through 11 corrugated feed horns each connected to the Radiometer Chain Assembly (RCA). This paper describes the design, the manufacturing and the testing of the flight model feed horns. They have been designed to optimize the LFI optical interfaces taking into account the tight mechanical requirements imposed by the Planck focal plane layout. All the eleven units have been successfully tested and integrated with the Ortho Mode transducers.
Planck-LFI flight model feed horns / F. Villa, O. D'Arcangelo, M. Pecora, L. Figini, R. Nesti, A. Simonetto, C. Sozzi, M. Sandri, P. Battaglia, P. Guzzi, M. Bersanelli, R. C. Butler, N. Mandolesi. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 4:12(2009 Dec), pp. T12004.T12004.1-T12004.T12004.15.
Planck-LFI flight model feed horns
M. Bersanelli;
2009
Abstract
The Low Frequency Instrument is optically interfaced with the ESA Planck telescope through 11 corrugated feed horns each connected to the Radiometer Chain Assembly (RCA). This paper describes the design, the manufacturing and the testing of the flight model feed horns. They have been designed to optimize the LFI optical interfaces taking into account the tight mechanical requirements imposed by the Planck focal plane layout. All the eleven units have been successfully tested and integrated with the Ortho Mode transducers.
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