Multi-mode horns combined with bolometric or incoherent detectors are finding application in astronomical receivers for which partially coherent operation can provide increased throughput and thus sensitivity. This is advantageous when observing faint sources, especially if diffraction limited resolution is not required, or if the horn beam is truncated by a cold stop in the optical train. We discuss how such horns can be simulated and present examples from receiver instrumentation on the Planck and SPICA space telescopes.
Multimode horn antennas for far-infrared astronomy / Murphy, J. A.; Bracken, C.; Doherty, S.; McAuley, I.; Wilson, D.; O'Sullivan, C.; Trappe, N.; Gradziel, M.; Ade, P.; Gleeson, E.; Maffei, B.; Lamarre, J. -M.; Noviello, F.; Peacocke, T.; Pisano, G.; Puget, J. -L.; Savini, G.; Sudiwala, R.; Withington, S.; Wylde, R.; Yurchenko, V.. - (2014), pp. 2580-2582. (Intervento presentato al convegno 8th European Conference on Antennas and Propagation, EuCAP 2014 tenutosi a nld) [10.1109/EuCAP.2014.6902348].
Multimode horn antennas for far-infrared astronomy
Pisano G.;
2014
Abstract
Multi-mode horns combined with bolometric or incoherent detectors are finding application in astronomical receivers for which partially coherent operation can provide increased throughput and thus sensitivity. This is advantageous when observing faint sources, especially if diffraction limited resolution is not required, or if the horn beam is truncated by a cold stop in the optical train. We discuss how such horns can be simulated and present examples from receiver instrumentation on the Planck and SPICA space telescopes.| File | Dimensione | Formato | |
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