Simulation and Testing of a Linear Array of Modified Four-Square Feed Antennas for the Tianlai Cylindrical Radio Telescope

Journal of Astronomical Instrumentation

Jeffrey B. Peterson¹  Catherine N. Steffel²  Peter T. Timbie²  Thomas Stucky²  Wing Lu²  Christopher J. Anderson²  Aleksander J. Cianciara³  Albert Stebbins⁴  Juyong Zhang⁵  Tao Liu⁵  Zhiping Chen⁵  Yougang Wang⁶  Shijie Sun⁶  Fengquan Wu⁶  Huli Shi⁶  Jixia Li⁶  Xuelei Chen⁶  Chao Liu⁷  Jingchao Geng⁷ 

[1] Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA;Department of Physics, University of Wisconsin — Madison, Madison, WI 53706, USA;Department of Physics, University of Wisconsin — Madison, Madison, WI 53706, USA；Corresponding author.;Fermi National Accelerator Laboratory, Batavia, IL 60510, USA;Hangzhou Dianzi University, Hangzhou, P. R. China;National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, P. R. China;The 54th Research Institute of the China Electronics Technology, Group Corporation (CETC54), Shijiazhuang, P. R. China

关键词: Large-scale structure of universe;    cosmic background radiation;    instrumentation: detectors;    methods: observational;    methods: telescopes;   

DOI  :  10.1142/S2251171717500039

学科分类：天文学(综合)

来源: World Scientific Publishing Co. Pte. Ltd.

【 摘 要 】

A wide bandwidth, dual polarized, modified four-square antenna is presented as a feed antenna for radio astronomical measurements. A linear array of these antennas is used as a line-feed for cylindrical reflectors for Tianlai, a radio interferometer designed for 21cm intensity mapping. Simulations of the feed antenna beam patterns and scattering parameters are compared to experimental results at multiple frequencies across the 650–1420MHz range. Simulations of the beam patterns of the combined feed array/reflector are presented as well.

【 授权许可】

Unknown