Probing Cosmic Dawn in a Global Spectrum Detection System

Jiaqin Xu,Fengquan Wu, Cong Zhang,Qisen Yan,Ruibin Yan,Jiacong Zhu,Kai He,Shijie Sun,Juyong Zhang,JiXia Li,Nanben Suo,Jia Zhou, Ruoyu Liu,Minquan Zhou,Yuanting Pan,Donghao Wu,Ruoyu Zhu,Zhuoqi Zhang,Jiaxi Cao,Xuelei Chen

2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)（2021）

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摘要

A dedicated detection system has been proposed in this paper for probing Cosmic Dawn through measuring the 21cm global spectrum. A wide-band antenna with low beam chromaticity has been developed for the detection system, real-time calibration with a set of calibration suits enable solution of system parameters and understanding the system performance. Preliminary results have been obtained through...

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关键词

Antenna measurements,Radio astronomy,Antenna theory,System performance,Instruments,Prototypes,Extraterrestrial measurements

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