Wideband MgB2 Hot-Electron Bolometer Mixers: IF Impedance Characterisation and Modeling
Artikel i vetenskaplig tidskrift, 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)

Författare

Stella Bevilacqua

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

Evgenii Novoselov

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

Serguei Cherednichenko

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

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

Styrkeområden

Informations- och kommunikationsteknik

Nanovetenskap och nanoteknik

Infrastruktur

Kollberglaboratoriet

Nanotekniklaboratoriet

Ämneskategorier

Fysik

Elektroteknik och elektronik

Nanoteknik

DOI

10.1109/TASC.2016.2537746

Mer information

Skapat

2017-10-07