Harmonic Mixing Using a HTS Step-Edge Josephson Junction at 0.6 THz Frequency

Jia Du; Colin M. Pegrum; Xiang Gao; Andrew R. Weily; Ting Zhang; Yingjie Jay Guo; Cathy P. Foley

doi:10.1109/TASC.2016.2636081

Harmonic Mixing Using a HTS Step-Edge Josephson Junction at 0.6 THz Frequency

Jia Du
, Colin M. Pegrum
, Xiang Gao
, Andrew R. Weily
, Ting Zhang
, Yingjie Jay Guo
, Cathy P. Foley

CSIRO
University of Strathclyde
University of Technology Sydney

科研成果: 期刊稿件 › 文章 › 同行评审

28 引用（Scopus）

摘要

A high-temperature superconducting (HTS) terahertz (THz) heterodyne mixer based on a thin-film antenna-coupled YBa ₂Cu₃O_7- _x step-edge Josephson junction is presented. The frequency down-conversion from 0.6 THz to an intermediate frequency (IF) of 2 GHz was achieved using high-order harmonic mixing of a local oscillator (LO), thus removing the need to use a second THz source as the LO pumping source. The DC and RF characteristics of the harmonic mixer as well as the relationship of the IF output power versus the harmonic number were experimentally studied and compared with simulated results. Most of our measurements were made at 40 K, but we also observed stable harmonic mixing at 77 K which we believe has not been reported previously in HTS junction mixers.

源语言	英语
期刊论文编号	7774982
期刊	IEEE Transactions on Applied Superconductivity
卷	27
期	4
DOI	https://doi.org/10.1109/TASC.2016.2636081
出版状态	已出版 - 6月 2017
已对外发布	是

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title = "Harmonic Mixing Using a HTS Step-Edge Josephson Junction at 0.6 THz Frequency",

abstract = "A high-temperature superconducting (HTS) terahertz (THz) heterodyne mixer based on a thin-film antenna-coupled YBa 2Cu3O7- x step-edge Josephson junction is presented. The frequency down-conversion from 0.6 THz to an intermediate frequency (IF) of 2 GHz was achieved using high-order harmonic mixing of a local oscillator (LO), thus removing the need to use a second THz source as the LO pumping source. The DC and RF characteristics of the harmonic mixer as well as the relationship of the IF output power versus the harmonic number were experimentally studied and compared with simulated results. Most of our measurements were made at 40 K, but we also observed stable harmonic mixing at 77 K which we believe has not been reported previously in HTS junction mixers.",

keywords = "High-temperature superconductor, Josephson mixer, harmonic mixing, simulation, terahertz mixer",

author = "Jia Du and Pegrum, \{Colin M.\} and Xiang Gao and Weily, \{Andrew R.\} and Ting Zhang and Guo, \{Yingjie Jay\} and Foley, \{Cathy P.\}",

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AU - Du, Jia

AU - Pegrum, Colin M.

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AU - Zhang, Ting

AU - Guo, Yingjie Jay

AU - Foley, Cathy P.

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AB - A high-temperature superconducting (HTS) terahertz (THz) heterodyne mixer based on a thin-film antenna-coupled YBa 2Cu3O7- x step-edge Josephson junction is presented. The frequency down-conversion from 0.6 THz to an intermediate frequency (IF) of 2 GHz was achieved using high-order harmonic mixing of a local oscillator (LO), thus removing the need to use a second THz source as the LO pumping source. The DC and RF characteristics of the harmonic mixer as well as the relationship of the IF output power versus the harmonic number were experimentally studied and compared with simulated results. Most of our measurements were made at 40 K, but we also observed stable harmonic mixing at 77 K which we believe has not been reported previously in HTS junction mixers.

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KW - simulation

KW - terahertz mixer

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Harmonic Mixing Using a HTS Step-Edge Josephson Junction at 0.6 THz Frequency

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