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Development of wideband orthomode transducers for FAST cryogenic receiver system
Fan, Jin1; Zhu, Kai1; Gan, Heng-Qian1; Jiang, Peng1; Yang, Jian2,3; Cao, Yang1; Liu, Hong-Fei1; Zhang, Hang1; Guo, Ming-Lei1; Shi, Xiang-Wei1
2020-05-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume20Issue:5Pages:11
AbstractThis paper describes the design, construction, and performance of the wideband orthomode transducers (OMTs) for the L- (1.2-1.8 GHz), the S- (2-3 GHz) and the P- (0.56-1.12 GHz) band receiver systems of the Five-hundred-meter Aperture Spherical radio Telescope (FAST). These OMTs operate at the cryogenic temperature of 70K to reduce their thermal noise contribution to the receiver chains. The development on the FAST L- and S-band quad-ridged waveguide (QRWG) OMTs is carried out based on the theoretical mode analysis. In view of the miniaturization of FAST cryogenic receiver system at P-band, a novel wideband compact bowtie dipole OMT is designed with an octave bandwidth as well as a length of only quarter wavelength. The proposed L-, S- and P-band OMTs are designed and optimized by using Ansys High Frequency Structure Simulator (HFSS), and then manufactured, tested at room temperature. Measurement of FAST cryogenic receiver system noise is also performed with the L-, S- and P-band OMTs installed. The measured results fully comply with the design specifications.
KeywordFAST instruments telescopes
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC ; NSFC ; NSFC-STINT ; NSFC-STINT ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC ; NSFC ; NSFC-STINT ; NSFC-STINT ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC ; NSFC ; NSFC-STINT ; NSFC-STINT ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC ; NSFC ; NSFC-STINT ; NSFC-STINT
DOI10.1088/1674-4527/20/5/71
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[U1931129] ; National Natural Science Foundation of China (NSFC)[U1631115] ; National Natural Science Foundation of China (NSFC)[U1831117] ; Chinese Academy of Sciences[U1931129] ; Chinese Academy of Sciences[U1631115] ; Chinese Academy of Sciences[U1831117] ; NSFC[11403054] ; NSFC[11973006] ; NSFC-STINT[11611130023 (CH2015-6360)]
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC ; NSFC ; NSFC-STINT ; NSFC-STINT ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC ; NSFC ; NSFC-STINT ; NSFC-STINT ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC ; NSFC ; NSFC-STINT ; NSFC-STINT ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; NSFC ; NSFC ; NSFC-STINT ; NSFC-STINT
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000536709300001
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/54646
Collection中国科学院国家天文台
Corresponding AuthorZhu, Kai
Affiliation1.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab FAST, Beijing 100101, Peoples R China
2.Chalmers Univ Technol, Dept Elect Engn, Antenna Grp, Onsala Space Observ, Gothenburg, Sweden
3.Chalmers Univ Technol, Dept Earth & Space Sci, Onsala Space Observ, Gothenburg, Sweden
Recommended Citation
GB/T 7714
Fan, Jin,Zhu, Kai,Gan, Heng-Qian,et al. Development of wideband orthomode transducers for FAST cryogenic receiver system[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2020,20(5):11.
APA Fan, Jin.,Zhu, Kai.,Gan, Heng-Qian.,Jiang, Peng.,Yang, Jian.,...&Shi, Xiang-Wei.(2020).Development of wideband orthomode transducers for FAST cryogenic receiver system.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,20(5),11.
MLA Fan, Jin,et al."Development of wideband orthomode transducers for FAST cryogenic receiver system".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 20.5(2020):11.
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