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

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23 引用 (Scopus)

摘要

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.

源语言英语
文章编号7774982
期刊IEEE Transactions on Applied Superconductivity
27
4
DOI
出版状态已出版 - 6月 2017
已对外发布

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