Design, Simulation and Quasioptical Measurement of Broadband Superconducting Filters at 220-330 GHz

Maxim Masyukov; Andrey Generalov; Aleksi Tamminen; Irina Nefedova; Roman Grigorev; Juha Ala-Laurinaho; Zachary Taylor

doi:10.1109/IRMMW-THz61557.2025.11319571

Design, Simulation and Quasioptical Measurement of Broadband Superconducting Filters at 220-330 GHz

Maxim Masyukov^*
, Andrey Generalov
, Aleksi Tamminen
, Irina Nefedova
, Roman Grigorev
, Juha Ala-Laurinaho
, Zachary Taylor

^*Corresponding author for this work

BA6210 Quantum sensors

Aalto University

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

In this work, superconducting niobium-film (Nb) filters have been designed and simulated based on Mattis-Bardeen theory in CST Microwave Studio. Proposed structures have been fabricated and measured in a WR-3.4 (220-330 GHz) quasioptical setup coupled to a cryostat. To de-embed measurements from the quasioptics, a Line-Reflect-Match calibration approach has been used. The measurements correspond well with numerical simulations, giving improved matching at 261 GHz versus 257 GHz in numerical simulations, however, with lower quality factors.

Original language	English
Title of host publication	50th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2025
Publisher	IEEE Institute of Electrical and Electronic Engineers
ISBN (Electronic)	979-8-3503-7883-2
DOIs	https://doi.org/10.1109/IRMMW-THz61557.2025.11319571
Publication status	Published - 2025
MoE publication type	A4 Article in a conference publication
Event	50th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2025 - Espoo, Finland Duration: 17 Aug 2025 → 22 Aug 2025

Conference

Conference	50th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2025
Country/Territory	Finland
City	Espoo
Period	17/08/25 → 22/08/25

Keywords

cryogenics
mm-waves
quasioptics
superconductivity

Access to Document

10.1109/IRMMW-THz61557.2025.11319571

Cite this

Masyukov, M., Generalov, A., Tamminen, A., Nefedova, I., Grigorev, R., Ala-Laurinaho, J., & Taylor, Z. (2025). Design, Simulation and Quasioptical Measurement of Broadband Superconducting Filters at 220-330 GHz. In 50th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2025 IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/IRMMW-THz61557.2025.11319571

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title = "Design, Simulation and Quasioptical Measurement of Broadband Superconducting Filters at 220-330 GHz",

abstract = "In this work, superconducting niobium-film (Nb) filters have been designed and simulated based on Mattis-Bardeen theory in CST Microwave Studio. Proposed structures have been fabricated and measured in a WR-3.4 (220-330 GHz) quasioptical setup coupled to a cryostat. To de-embed measurements from the quasioptics, a Line-Reflect-Match calibration approach has been used. The measurements correspond well with numerical simulations, giving improved matching at 261 GHz versus 257 GHz in numerical simulations, however, with lower quality factors.",

keywords = "cryogenics, mm-waves, quasioptics, superconductivity",

author = "Maxim Masyukov and Andrey Generalov and Aleksi Tamminen and Irina Nefedova and Roman Grigorev and Juha Ala-Laurinaho and Zachary Taylor",

year = "2025",

doi = "10.1109/IRMMW-THz61557.2025.11319571",

language = "English",

booktitle = "50th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2025",

publisher = "IEEE Institute of Electrical and Electronic Engineers",

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note = "50th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2025 ; Conference date: 17-08-2025 Through 22-08-2025",

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Masyukov, M, Generalov, A, Tamminen, A, Nefedova, I, Grigorev, R, Ala-Laurinaho, J & Taylor, Z 2025, Design, Simulation and Quasioptical Measurement of Broadband Superconducting Filters at 220-330 GHz. in 50th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2025. IEEE Institute of Electrical and Electronic Engineers, 50th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2025, Espoo, Finland, 17/08/25. https://doi.org/10.1109/IRMMW-THz61557.2025.11319571

Design, Simulation and Quasioptical Measurement of Broadband Superconducting Filters at 220-330 GHz. / Masyukov, Maxim; Generalov, Andrey; Tamminen, Aleksi et al.
50th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2025. IEEE Institute of Electrical and Electronic Engineers, 2025.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Design, Simulation and Quasioptical Measurement of Broadband Superconducting Filters at 220-330 GHz

AU - Masyukov, Maxim

AU - Generalov, Andrey

AU - Tamminen, Aleksi

AU - Nefedova, Irina

AU - Grigorev, Roman

AU - Ala-Laurinaho, Juha

AU - Taylor, Zachary

PY - 2025

Y1 - 2025

N2 - In this work, superconducting niobium-film (Nb) filters have been designed and simulated based on Mattis-Bardeen theory in CST Microwave Studio. Proposed structures have been fabricated and measured in a WR-3.4 (220-330 GHz) quasioptical setup coupled to a cryostat. To de-embed measurements from the quasioptics, a Line-Reflect-Match calibration approach has been used. The measurements correspond well with numerical simulations, giving improved matching at 261 GHz versus 257 GHz in numerical simulations, however, with lower quality factors.

AB - In this work, superconducting niobium-film (Nb) filters have been designed and simulated based on Mattis-Bardeen theory in CST Microwave Studio. Proposed structures have been fabricated and measured in a WR-3.4 (220-330 GHz) quasioptical setup coupled to a cryostat. To de-embed measurements from the quasioptics, a Line-Reflect-Match calibration approach has been used. The measurements correspond well with numerical simulations, giving improved matching at 261 GHz versus 257 GHz in numerical simulations, however, with lower quality factors.

KW - cryogenics

KW - mm-waves

KW - quasioptics

KW - superconductivity

UR - https://www.scopus.com/pages/publications/105032736471

U2 - 10.1109/IRMMW-THz61557.2025.11319571

DO - 10.1109/IRMMW-THz61557.2025.11319571

M3 - Conference article in proceedings

AN - SCOPUS:105032736471

BT - 50th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2025

PB - IEEE Institute of Electrical and Electronic Engineers

T2 - 50th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2025

Y2 - 17 August 2025 through 22 August 2025

ER -

Masyukov M, Generalov A, Tamminen A, Nefedova I, Grigorev R, Ala-Laurinaho J et al. Design, Simulation and Quasioptical Measurement of Broadband Superconducting Filters at 220-330 GHz. In 50th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2025. IEEE Institute of Electrical and Electronic Engineers. 2025 doi: 10.1109/IRMMW-THz61557.2025.11319571

Design, Simulation and Quasioptical Measurement of Broadband Superconducting Filters at 220-330 GHz

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