| 射电望远镜相控阵馈源技术 |
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| 引用本文： | 伍洋, 杜彪, 金乘进, 朱凯, 龚书喜. 射电望远镜相控阵馈源技术[J]. 电波科学学报, 2013, 28(2): 348-353. |
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| 作者姓名： | 伍洋 杜彪 金乘进 朱凯 龚书喜 |
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| 作者单位： | 1.西安电子科技大学,陕西 西安 710071;2.射电天文技术联合实验室,河北 石家庄 050081 |
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| 摘 要： |
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| 关 键 词： | 射电望远镜 馈源 焦面场 多波束 |
Phased array feed technology for radio telescope |
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| WU Yang, DU Biao, JIN Chengjin, ZHU Kai, GONG Shuxi. Phased array feed technology for radio telescope[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2013, 28(2): 348-353. |
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| Authors: | WU Yang DU Biao JIN Chengjin ZHU Kai GONG Shuxi |
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| Affiliation: | 1.Xidian University, Xi’an Shaanxi 710071, China;2.2.The Joint Laboratory for Radio Astronomy Technology, Shijiazhuang Hebei 050081, China |
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| Abstract: | Phased array feed（PAF)is a small twodimensional phased array antenna as the multibeam feed.The most prominent merit of PAF is the capability of synthesizing closely overlapped beams，leading to continuous fieldofview coverage and faster survey speed.In this paper， the relationship between focal field matching and antenna efficiency is analyzed，radiation performance both in singlepixel and multibeam applications are compared between PAF and waveguide feeds，and the SNR model of phased array fed radio telescope is introduced.As an emerging feed technology，PAF exhibits more flexibility and better performance. |
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| Keywords: | radio telescope feed focal field multi beam |
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