DocumentCode
3749652
Title
Mode analysis of the 5 meter Terahertz antenna for Dome A, Antarctica
Author
Hairen Wang;Jingquan Cheng;Zheng Lou;Yingxi Zuo;Ji Yang
Author_Institution
IEEE Conference Publishing, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China
Volume
1
fYear
2015
Firstpage
1
Lastpage
3
Abstract
The terahertz windows of the 5 meter Dome A Terahertz Explorer (DATE5) are primarily over the wavelengths between 350 and 200 μm. For studying the performance of the DATE5, based on a finite element model of the whole telescope assembly, the Eigen frequencies and Eigen modes of the DATE5 structure at different elevation angles are studied. The obtained results show the ranges of first 3 Eigen frequencies are in [5.73Hz, 6.22Hz], [6.84Hz, 7.60Hz], and [10.20 Hz, 13.30Hz] respectively, and show dependence with elevation angles. All of the Eigen frequencies are larger than 5 Hz, which meet the performance requirements for this telescope.
Keywords
"Telescopes","Young´s modulus","Antenna theory","Finite element analysis","Decision support systems","Standards","Aluminum"
Publisher
ieee
Conference_Titel
Microwave Conference (APMC), 2015 Asia-Pacific
Print_ISBN
978-1-4799-8765-8
Type
conf
DOI
10.1109/APMC.2015.7411722
Filename
7411722
Link To Document