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Low-Loss, Thermally Insulating, and Flexible Rectangular Dielectric Waveguide for Sub-THz-Signal Coupling in Superconducting Receivers
Zhu, Hao-Tian1,2; Liu, Dong3; Hu, Jie3,4; Li, Sheng3,5; Shi, Sheng-Cai3; Xue, Quan6; Che, Wenquan6
2020-03-01
Source PublicationIEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
ISSN2156-342X
Volume10Issue:2Pages:190-199
Abstract

Dielectric waveguides have potential as transmission lines in subterahertz (sub-THz) applications due to their low-loss. A new application of a rectangular dielectric waveguide (RDW) for a THz superconducting receiver system for radio astronomy is investigated and demonstrated for the first time. The RDW can be used to transmit sub-THz local oscillator (LO) signals into the cryostat for driving the superconductor insulator superconductor mixer, with very low heat transfer. A series of RDWs with different lengths are fabricated. The measured average attenuation constants of the RDW are 0.034 and 0.069 dB/mm at 3.4 and 300 K measurement environments over 240-300 GHz, respectively. The double-sideband system noise temperature of the receiver system is also measured. With this LO signal feeding system, there is only 0.69 mW thermal transfer power from the 300 to the 3.4 K cold stage. Compared to traditional pumping signal feeding schemes, such as the horn-to-horn structure and beam splitter method, this approach outperforms the traditional schemes in terms of feeding flexibility, insertion loss, and thermal isolation for the cryostat. The proposed RDW can be widely applied to superconducting receivers for radio astronomy in the future.

KeywordAstronomy instrument dielectric transmission line rectangular dielectric waveguide (RDW) superconducting receiver terahertz (THz)
DOI10.1109/TTHZ.2019.2963688
WOS KeywordTERAHERTZ ; ANTENNA
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Optics ; Physics
WOS SubjectEngineering, Electrical & Electronic ; Optics ; Physics, Applied
WOS IDWOS:000519702100010
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/36064
Collection中国科学院紫金山天文台
Corresponding AuthorShi, Sheng-Cai; Xue, Quan
Affiliation1.City Univ Hong Kong, State Key Lab Millimeter Waves, Hong Kong, Peoples R China
2.Sorbonne Univ, Univ PSL, Observ Paris, LERMA,CNRS, F-75014 Paris, France
3.Chinese Acad Sci, Purple Mt Observ, Millimeter & Submillimeter Wave Lab, Nanjing 210033, Peoples R China
4.Univ Paris Diderot, Lab Astroparticule & Cosmol, F-75013 Paris, France
5.China Acad Space Technol, Natl Key Lab Sci & Technol Space Microwave, Xian 710100, Peoples R China
6.South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510006, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Hao-Tian,Liu, Dong,Hu, Jie,et al. Low-Loss, Thermally Insulating, and Flexible Rectangular Dielectric Waveguide for Sub-THz-Signal Coupling in Superconducting Receivers[J]. IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY,2020,10(2):190-199.
APA Zhu, Hao-Tian.,Liu, Dong.,Hu, Jie.,Li, Sheng.,Shi, Sheng-Cai.,...&Che, Wenquan.(2020).Low-Loss, Thermally Insulating, and Flexible Rectangular Dielectric Waveguide for Sub-THz-Signal Coupling in Superconducting Receivers.IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY,10(2),190-199.
MLA Zhu, Hao-Tian,et al."Low-Loss, Thermally Insulating, and Flexible Rectangular Dielectric Waveguide for Sub-THz-Signal Coupling in Superconducting Receivers".IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY 10.2(2020):190-199.
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