Dish Verification Antenna China for SKA

Author

Xiaoming Chai ; Biao Du ; Yuanpeng Zheng ; Lanchuan Zhou ; Xiang Zhang ; Bo Peng

Author_Institution

Nat. Astron. Obs., Beijing, China

Volume

01

fYear

2013

fDate

23-25 Oct. 2013

Firstpage

33

Lastpage

36

Abstract

The SKA (Square Kilometre Array), being the next-generation largest radio telescope, has now stepped into the pre-construction phase. China has joined this long march since the early 1990s and made significant contributions during this process. In this paper, a brief review of the SKA concept and detailed description of the challenges for the SKA dishes are given. Then two concept designs for the SKA dishes made by Chinese, the Dish Verification Antenna China (DVAC), are presented. The designs including microwave optics, antenna structure and servo system are carefully carried out to meet the intended SKA requirements. Comparison of these two designs is made in the end and one of them is selected as a candidate for the SKA dishes.

Keywords

antenna arrays; radiotelescopes; servomechanisms; DVAC; Dish Verification Antenna China; SKA concept; antenna structure; microwave optics; next-generation largest radio telescope; servo system; square kilometre array; Apertures; Arrays; Feeds; Microwave antennas; Optics; Reflector antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on

Conference_Location

Nanjing

Print_ISBN

978-7-5641-4279-7

Type

conf

Filename

6717358