Development of a Dual Polarization SIS Mixer With a Planar Orthomode Transducer at 350 GHz

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	Development of a Dual Polarization SIS Mixer With a Planar Orthomode Transducer at 350 GHz
	Liu, Kuan-Yu 1; Wang, Ming-Jye 1; Li, Chao-Te 1; Chen, Tse-Jun 1; Shi, Sheng-Cai2
刊名	IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
	2013-06-01
卷号	23 期号:3 页码:0
关键词	Dual polarization planar orthomode transducer SIS junction mixer
ISSN号	1051-8223
通讯作者	Liu, KY (reprint author), Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan. Email: kyliu@asiaa.sinica.edu.tw ; scshi@pmo.ac.cn
英文摘要	A multipixel array equipped with dual-polarization superconductor-insulator-superconductor junction mixers at approximately 350 GHz is considered to improve the efficiency and survey speed of a telescope. This study develops a compact mixer with a planar orthomode transducer as a key component. Signals coming from a circular waveguide are separated into two polarizations via orthogonal waveguide probes, and then transmitted to the junctions through the tuning circuit. To suppress resonance, metallic blocks confine the RF signals within the circular waveguide, and a 2-mu m-thick silicon nitride membrane, on which all devices were implemented, was suspended across the circular waveguide. The orthomode transducer, simulated with a three-dimensional electromagnetic simulator, has a cross-polarization of less than -20 dB between 306 and 367 GHz. The IF circuit consists of a low pass filter, coplanar waveguides, and a transition to coaxial. The return loss of the IF circuit is less than -20 dB up to 16 GHz from both simulations and measurements. The superconductor-insulator-superconductor junction mixers have been fabricated with quality factor (R-sg/R-n) of 8 and the double-side-band receiver noise temperature T-rx is approximately 120 K between 320 and 360 GHz.
学科主题	Physics, Engineering
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Electrical & Electronic ; Physics, Applied
研究领域[WOS]	Engineering ; Physics
关键词[WOS]	TO-MICROSTRIP TRANSITION ; WAVE ; MILLIMETER ; EFFICIENCY ; BANDWIDTH ; RECEIVER
收录类别	SCI
语种	英语
WOS记录号	WOS:000318867100014
公开日期	2014-01-08
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/9802]
专题	紫金山天文台_毫米波和亚毫米波技术实验室
作者单位	1.Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan 2.Chinese Acad Sci, Purple Mt Observ, Key Lab Radio Astron, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Liu, Kuan-Yu,Wang, Ming-Jye,Li, Chao-Te,et al. Development of a Dual Polarization SIS Mixer With a Planar Orthomode Transducer at 350 GHz[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2013,23(3):0.
APA	Liu, Kuan-Yu,Wang, Ming-Jye,Li, Chao-Te,Chen, Tse-Jun,&Shi, Sheng-Cai.(2013).Development of a Dual Polarization SIS Mixer With a Planar Orthomode Transducer at 350 GHz.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,23(3),0.
MLA	Liu, Kuan-Yu,et al."Development of a Dual Polarization SIS Mixer With a Planar Orthomode Transducer at 350 GHz".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23.3(2013):0.