Study on the optics of the 5 meter Dome A Terahertz Explorer (DATE5) for Antarctica

Author

Zheng Lou ; Yingxi Zuo ; Jingquan Cheng ; Ji Yang ; Shengcai Shi

Author_Institution

Purple Mountain Obs., Nanjing, China

fYear

2012

fDate

22-26 Oct. 2012

Firstpage

47

Lastpage

50

Abstract

The 5 m Dome A Terahertz Explorer (DATE5) is a proposed terahertz telescope to be deployed in Dome A, Antarctica, to exploit one of the best observing conditions at terahertz bands on the earth. This paper presents a study on the optics of the proposed DATE5 antenna. Two configurations, namely the Cassegrain and the Coudé configurations, are proposed and their respective optical performances, such as field of view, beam and aperture efficiency, and chopping performance, are simulated and compared. Some engineering considerations, such as system reliability and environmental adaptability are also discussed.

Keywords

antennas; astronomical telescopes; Antarctica; Cassegrain configuration; Coude configuration; DATE5 antenna optics; Dome A Terahertz Explorer; aperture efficiency; beam chopping performance; beam efficiency; environmental adaptability; size 5 m; system reliability; terahertz telescope; Adaptive optics; Antarctica; Apertures; Feeds; Integrated optics; Optical reflection; Physical optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas, Propagation & EM Theory (ISAPE), 2012 10th International Symposium on

Conference_Location

Xian

Print_ISBN

978-1-4673-1799-3

Type

conf

DOI

10.1109/ISAPE.2012.6408704

Filename

6408704