Noise and IF Gain Bandwidth of a Balanced Waveguide NbN/GaN Hot Electron Bolometer Mixer Operating at 1.3 THz

Autor: Alexey Pavolotsky, Vincent Desmaris, Sascha Krause, Victor Belitsky, Denis Meledin, Hawal Rashid

Publikováno v: IEEE Transactions on Terahertz Science and Technology. 8:365-371

In this paper, we present the comprehensive characterization of a waveguide balanced phonon-cooled NbN hot electron bolometer (HEB) mixer on a GaN buffer-layer operating at approximately 1.3 terahertz (THz). The measured uncorrected double sideband n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::01dcff641e16debe81c9804dc3d37cde
https://doi.org/10.1109/tthz.2018.2824027

A Nonlinear Transmission Line Model for Simulating Distributed SIS Frequency Multipliers

Autor: Vincent Desmaris, Victor Belitsky, Ghassan Yassin, John D. Garrett, Alexey Pavolotsky, Hawal Rashid

Publikováno v: IEEE Transactions on Terahertz Science and Technology
IEEE Transactions on Terahertz Science and Technology (2156-342X) vol.10(2020)

Superconductor/insulator/superconductor (SIS) jun-ctions have extremely nonlinear electrical properties, which makes them ideal for a variety of applications, including heterodyne mixing and frequency multiplication. With SIS mixers, the SIS junction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb9c547f6046720a8400beb3b90e5d38

Design of Wideband Waveguide Hybrid With Ultra-Low Amplitude Imbalance

Autor: Vincent Desmaris, Hawal Rashid, Marcel Ruf, Andreas Henkel, Victor Belitsky, Thilo Bednorz

Publikováno v: IEEE Transactions on Terahertz Science and Technology. 6:83-90

We present a design and synthesis procedure for a new 90 ° waveguide hybrid with ultra-low amplitude imbalance. This novel hybrid design is based on Reed's multiple branch waveguide hybrid. The primary feature of this quadrature hybrid design is the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::12f1ed9c00c199c85bf0c7bab610424c
https://doi.org/10.1109/tthz.2015.2502070

Direct Measurement of Superconducting Tunnel Junction Capacitance

Autor: Victor Belitsky, Hawal Rashid, Parisa Yadranjee Aghdam, Alexey Pavolotsky, Denis Meledin, Vincent Desmaris

Publikováno v: IEEE Transactions on Terahertz Science and Technology. 5:464-469

Superconductor–insulator–superconductor (SIS) junction is the key component for millimeter and submillimeter mixers for radio astronomy and environmental science. The capacitance of the SIS mixer determines both the RF and IF performance. Previou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4d610aef3fbd5810dbc76a005dc41197
https://doi.org/10.1109/tthz.2015.2413214

SEPIA - a new single pixel receiver at the APEX Telescope

Autor: Magnus Strandberg, A. Koops, Michael Olberg, J. Barkhof, Igor Lapkin, Pavel A. Yagoubov, Parisa Yadranjee Aghdam, John Conway, T. Klein, Sascha Krause, Alexey Pavolotsky, W. Boland, Andrey M. Baryshev, Per Bergman, Erik Sundin, E. De Beck, J. P. Pérez-Beaupuits, Hans Olofsson, Ronald Hesper, M. E. Bekema, K. Torstensson, Bhushan Billade, F. M. Montenegro-Montes, C. De Breuck, Vincent Desmaris, S. Shafiee, J. Adema, Sven-Erik Ferm, Victor Belitsky, K. Immer, Hawal Rashid, Mathias Fredrixon, Denis Meledin, Andrey B. Ermakov

Publikováno v: Astronomy & astrophysics, 612:23. EDP Sciences

Context: We describe the new SEPIA (Swedish-ESO PI Instrument for APEX) receiver, which was designed and built by the Group for Advanced Receiver Development (GARD), at Onsala Space Observatory (OSO) in collaboration with ESO. It was installed and co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ba618a16a3e608a95bfc49b991ae94e
http://arxiv.org/abs/1712.07396