NDLI: Development of 460 GHz and Dual Polarization SIS Mixers for the Submillimeter Array

Content Provider	IEEE Xplore Digital Library
Author	Chao-Te Li Kuan-Yu Liu Wei-Chun Lu Chuang-Ping Chiu Tse-Jun Chen Chong-Wen Chen Yung-Chin Chang Ming-Jye Wang Sheng-Cai Shi
Copyright Year	2002
Abstract	A heterodyne receiver incorporating superconductor-insulator-superconductor (SIS) mixers has been designed to cover the frequency range from 400 to 520 GHz of the Submillimeter Array (SMA). Various tuning circuits have been employed to resonate out the geometric capacitance of the junction and provide impedance matching to the waveguide probe. Our measurements indicated that a receiver noise temperature of around 90 K, with the contributions from the input noise and intermediate frequency (IF) noise estimated to be around 60 K and 10 K, respectively. SIS mixers integrated with planar orthomode transducers (OMT) have also been designed at 345 GHz for dual polarization detections, and results from the 3-dimensional (3-D) electromagnetic (EM) simulations are presented.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	654
Ending Page	658
Page Count	5
File Size	211407
File Format	PDF
ISSN	10518223
Volume Number	21
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Mixers Junctions Impedance Receivers Probes Tuning Noise submillimeter array Orthomode transducer polarization SIS mixer
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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