A 3.5-THz, x6-Harmonic, Single-Ended Schottky Diode Mixer for Frequency Stabilization of Quantum-Cascade Lasers
Artikel i vetenskaplig tidskrift, 2021
Efficient and compact frequency converters are essential for frequency stabilization of terahertz sources. In this paper, we present a 3.5-THz, 6-harmonic, integrated Schottky diode mixer operating at room temperature. The designed frequency converter is based on a single-ended, planar Schottky diode with a sub-micron anode contact area defined on a suspended 2-m ultra-thin GaAs substrate. The dc-grounded anode pad with the radio frequency E-plane probe resulted in an electrically compact circuit. At 200 MHz intermediate frequency, a mixer conversion loss of about 59 dB is measured resulting in a 40 dB signal-to-noise ratio for phase locking a 3.5-THz quantum-cascade laser. Using a quasi-static diode model combined with electromagnetic simulations, good agreement with the measured results was obtained. Harmonic frequency converters without the need of cryogenic cooling will help in the realization of highly sensitive space and air-borne heterodyne receivers.
phase locking
mixer characterization
terahertz electronics
quantum-cascade lasers
heterodyne receivers
Schottky diodes
harmonic mixers
Frequency converters
integrated circuits
frequency stabilization
Författare
Divya Jayasankar
RISE Research Institutes of Sweden
Chalmers, Mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik
Gigahertzcentrum
Omnisys Instruments
Vladimir Drakinskiy
Chalmers, Mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik
RISE Research Institutes of Sweden
Gigahertzcentrum
Omnisys Instruments
Nick Rothbart
Deutsches Zentrums für Luft- und Raumfahrt (DLR)
Humboldt-Universität zu Berlin
Heiko Richter
Deutsches Zentrums für Luft- und Raumfahrt (DLR)
Humboldt-Universität zu Berlin
Xiang Lü
Paul Drude Institut fur Festkorperelektronik
Lutz Schrottke
Paul Drude Institut fur Festkorperelektronik
Holger T. Grahn
Paul Drude Institut fur Festkorperelektronik
Martin Wienold
Deutsches Zentrums für Luft- und Raumfahrt (DLR)
Humboldt-Universität zu Berlin
Heinz-Wilhelm Hübers
Humboldt-Universität zu Berlin
Deutsches Zentrums für Luft- und Raumfahrt (DLR)
Peter Sobis
RISE Research Institutes of Sweden
Gigahertzcentrum
Omnisys Instruments
Chalmers, Mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik
Jan Stake
Chalmers, Mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik
RISE Research Institutes of Sweden
Gigahertzcentrum
Omnisys Instruments
IEEE Transactions on Terahertz Science and Technology
2156-342X (ISSN) 21563446 (eISSN)
Vol. 11 6 684-694Integrerad terahertzelektronik för framtida FIR instrument
Rymdstyrelsen (170/17), 2018-01-01 -- 2019-12-31.
THz-metrologi för moderna trådlösa system
Stiftelsen för Strategisk forskning (SSF) (FID17-0040), -- .
Styrkeområden
Informations- och kommunikationsteknik
Infrastruktur
Kollberglaboratoriet
Nanotekniklaboratoriet
Ämneskategorier (SSIF 2011)
Elektroteknik och elektronik
Annan elektroteknik och elektronik
DOI
10.1109/TTHZ.2021.3115730