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Mapping speed for an array of corrugated horns
2010
Applied Optics
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I address the choice of horn diameter for millimeter-wave array receivers with corrugated horns. For maximum point-source mapping speed, in both total power and polarization with typical receiver noise contributions and a close-packed horn array that fills the field of view, the optimum horn diameter is 1:6-1:7Fλ, where F is the focal ratio. A AE25% change in horn diameter gives <10% degradation in mapping speed. Correlated noise from the cold stop, atmosphere, and cosmic microwave background
doi:10.1364/ao.49.000479
pmid:20090814
fatcat:rhiam7bx6zfubgs5q6zcz4ze6q