KMS National Astronomical Observatories, CAS
| 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 Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| ISSN | 1674-4527 |
| Volume | 20Issue:5Pages:11 |
| Abstract | This 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. |
| Keyword | FAST instruments telescopes |
| Funding Organization | 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 ; 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 |
| DOI | 10.1088/1674-4527/20/5/71 |
| Language | 英语 |
| Funding Project | National 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 Organization | 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 ; 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 Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000536709300001 |
| Publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.bao.ac.cn/handle/114a11/54646 |
| Collection | 中国科学院国家天文台 |
| Corresponding Author | Zhu, Kai |
| Affiliation | 1.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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