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超导滤波器在射电天文RFI中的应用
王生旺,王贤华,刘洋,何川,丁晓杰
0
(中国电子科技集团公司第十六研究所,合肥 230043;中国电子科技集团公司超导电子技术重点实验室,合肥 230043)
摘要:
针对射电天文测站急需解决通信频率对制冷接收机严重干扰的问题,本论文研制了一款S波段的高温超导滤波器,并将其应用在射电望远镜中,对通讯干扰频率的抑制作用进行了验证,表明在对原接收机性能指标不影响的情况下,对测站干扰点最强的2.143 GHz以下频段抑制度达到了114 dB,取得了很好的应用效果。
关键词:  超导滤波器,射电天文,干扰
DOI:10.13380/j.ltpl.2019.01.005
基金项目:
Application of Superconducting Filter in Radio Astronomy RFI
WANG Shengwang,WANG Xianhua,LIU Yang,HE Chuan,DING Xiaojie
(The 16th Institute of CETC,Hefei230043,China;CETC Key laboratory of superconducting & electronic technologies,Hefei 230043,China)
Abstract:
In order to solve the serious problem ofradio astronomy cryogenic receiverbeing interfered by communication frequencies, a type of S-Band superconducting filter is researched in this paper, and is applied to the radio telescope, and the effect of RFI is verified. It is indicated that rejectionhas achieved 114 dB at the frequencies below 2.143 GHz, meanwhile the cryogenic receiver performance has not deteriorated.
Key words:  superconducting filter,radio astronomy,RFI

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