Wideband MgB2 Hot-Electron Bolometer Mixers: IF Impedance Characterisation and Modeling
Journal article, 2016

In this paper we present a method for low signal S11 parameter vector measurements of a cryogenic device in the microwave frequency range. In particular, the intermediate frequency (IF) impedance of MgB2 Hot-electron Bolometer (HEB) mixers was investigated over a frequency range of 100 MHz to 10 GHz. A new cryogenic calibration technique, which employs the HEB as a calibration kitandrequires two consecutive thermal cycles, was developed for this purpose.The real part of measured IF impedance showed a strong correlationwith the differential resistance (dV/dI) obtained from the dc I-V curves while the imaginary partwas capacitive for almost the entire frequency range.

MgB2 thin film

IF impedance

Heterodyne receiver

THz detectors.

Hot-electron bolometers (HEBs)

Author

Stella Bevilacqua

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Evgenii Novoselov

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Serguei Cherednichenko

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Hiroyuki Shibata

Nippon Telegraph and Telephone Corporation

Yasuhiro Tokura

Nippon Telegraph and Telephone Corporation

IEEE Transactions on Applied Superconductivity

1051-8223 (ISSN)

Vol. 26 3 2300105- 7423680

Areas of Advance

Information and Communication Technology

Nanoscience and Nanotechnology (2010-2017)

Infrastructure

Kollberg Laboratory

Nanofabrication Laboratory

Subject Categories

Physical Sciences

Electrical Engineering, Electronic Engineering, Information Engineering

Nano Technology

DOI

10.1109/TASC.2016.2537746

More information

Created

10/7/2017