A 7–8.5 GHz High Performance MMIC HTS Josephson Mixer

Author

Ting Zhang ; Jia Du ; Guo, Y. Jay ; Xiaowei Sun

Author_Institution

CSIRO ICT Centre, Epping, NSW, Australia

Volume

23

Issue

8

fYear

2013

fDate

Aug. 2013

Firstpage

427

Lastpage

429

Abstract

A low-loss, low power consumption monolithic high-temperature superconducting (HTS) Josephson junction mixer at 7-8.5 GHz is presented. The mixer consists of a HTS YBa₂Cu₃O_7-x (YBCO) bandpass filter for RF input, a lowpass filter for IF output and a LO resonator integrated with a single Josephson junction. All the passive and active devices are fabricated on a 20 mm×10 mm MgO substrate. Measurement result shows a conversion gain of -7 dB at 40 K, and -4.7 dB at 20 K. The IF output versus the RF input exhibits a wide linear range of conversion gains. The mixer has an extremely low LO power requirement at -32 dBm and a 50 nW power consumption.

Keywords

Josephson effect; MMIC mixers; band-pass filters; barium compounds; high-temperature superconductors; low-pass filters; low-power electronics; resonator filters; HTS Josephson junction mixer; LO resonator; MMIC HTS Josephson mixer; MgO; MgO substrate; YBCO bandpass filter; YBa₂Cu₃O_7-x; frequency 7 GHz to 8.5 GHz; low power consumption; lowpass filter; monolithic high-temperature superconducting mixer; power 50 nW; High-temperature superconductors; Josephson junctions; Junctions; MMICs; Mixers; Radio frequency; Superconducting microwave devices; High temperature superconductor; Josephson mixer; MMIC; low loss; low power;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2013.2269042

Filename

6560427