HTS step-edge Josephson junction terahertz harmonic mixer

被引：38
|
作者：
Du, Jia [1 ]
Weily, Andrew R. [2 ]
Gao, Xiang [1 ]
Zhang, Ting [2 ]
Foley, Cathy P. [1 ]
Guo, Yingjie Jay [3 ]
机构：
[1] CSIRO Mfg, POB 218, Lindfield, NSW 2070, Australia
[2] CSIRO Data 61, Marsfield, NSW 2122, Australia
[3] Univ Technol, Global Big Data Technol Ctr, Ultimo, NSW 2007, Australia
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2017年 / 30卷 / 02期
关键词：
high-temperature superconductor; terahertz mixer; Josephson junction; harmonic mixing; terahertz antenna; GHZ; NOISE;
D O I：
10.1088/0953-2048/30/2/024002
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A high-temperature superconducting (HTS) terahertz (THz) frequency down-converter or mixer based on a thin-film ring-slot antenna coupled YBa2Cu3O7-x (YBCO)/MgO step-edge Josephson junction is reported. The frequency down-conversion was achieved using higher order harmonics of an applied lower frequency (19-40 GHz) local oscillator signal in the Josephson junction mixing with a THz signal of over 600 GHz, producing a 1-3 GHz intermediate frequency signal. Up to 31st order of harmonic mixing was obtained and the mixer operated stably at temperatures up to 77 K. The design details of the antenna, HTS Josephson junction mixer, the matching and isolation circuits, and the DC and RF performance evaluation are described in this paper.
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收藏
页数：8
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