Published January 20, 2010
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Mapping speed for an array of corrugated horns
Abstract
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 ±25% change in horn diameter gives <10% degradation in mapping speed. Correlated noise from the cold stop, atmosphere, and cosmic microwave background has little effect on the mapping speed and optimum horn diameter.
Additional Information
© 2010 Optical Society of America. Received 19 June 2009; revised 3 December 2009; accepted 21 December 2009; posted 22 December 2009 (Doc. ID 113071); published 15 January 2010. This work was supported by the National Science Foundation (NSF) under grant ANT-0638937, and by the John B. and Nelly Kilroy Foundation. The author thanks T. Crawford and J. McMahon for helpful discussions. The author also thanks the referees for their comments, which led to significant improvements in the paper.Attached Files
Published - Padin2010p7011Appl_Optics.pdf
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Padin2010p7011Appl_Optics.pdf
Additional details
Identifiers
- Eprint ID
- 17406
- Resolver ID
- CaltechAUTHORS:20100205-150026755
Funding
- NSF
- ANT-0638937
- Nelly Kilroy Foundation
Dates
- Created
-
2010-02-10Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field