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

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

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.

Original language	English
Article number	7774982
Journal	IEEE Transactions on Applied Superconductivity
Volume	27
Issue number	4
DOIs	https://doi.org/10.1109/TASC.2016.2636081
Publication status	Published - Jun 2017
Externally published	Yes

Keywords

High-temperature superconductor
Josephson mixer
harmonic mixing
simulation
terahertz mixer

Access to Document

10.1109/TASC.2016.2636081

Cite this

@article{d12a100ba0a04bd687fa7f3848076911,

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.}",

note = "Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

year = "2017",

month = jun,

doi = "10.1109/TASC.2016.2636081",

language = "English",

volume = "27",

journal = "IEEE Transactions on Applied Superconductivity",

issn = "1051-8223",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "4",

}

TY - JOUR

T1 - Harmonic Mixing Using a HTS Step-Edge Josephson Junction at 0.6 THz Frequency

AU - Du, Jia

AU - Pegrum, Colin M.

AU - Gao, Xiang

AU - Weily, Andrew R.

AU - Zhang, Ting

AU - Guo, Yingjie Jay

AU - Foley, Cathy P.

PY - 2017/6

Y1 - 2017/6

N2 - 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.

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.

KW - High-temperature superconductor

KW - Josephson mixer

KW - harmonic mixing

KW - simulation

KW - terahertz mixer

UR - http://www.scopus.com/inward/record.url?scp=85012993486&partnerID=8YFLogxK

U2 - 10.1109/TASC.2016.2636081

DO - 10.1109/TASC.2016.2636081

M3 - Article

AN - SCOPUS:85012993486

SN - 1051-8223

VL - 27

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 4

M1 - 7774982

ER -

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this