University of Oulu

M. E. Leinonen, J. -P. Mäkelä, K. Nevala, N. Tervo and A. Pärssinen, "Repeatability of 220–330 GHz Variable Waveguide Attenuator and Frequency Extenders for 6G Measurements," 2022 98th ARFTG Microwave Measurement Conference (ARFTG), 2022, pp. 1-4, doi: 10.1109/ARFTG52954.2022.9844108.

Repeatability of 220 - 330 GHz variable waveguide attenuator and frequency extenders for 6G measurements

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Author: Leinonen, Marko E.1; Mäkelä, Juha-Pekka1; Nevala, Klaus1;
Organizations: 1University of Oulu, Center of Wireless Communications Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 2.2 MB)
Persistent link:
Language: English
Published: Institute of Electrical and Electronics Engineers, 2022
Publish Date: 2022-09-21


Mechanical waveguide attenuators are used above 100 GHz frequencies to control signal levels in power sweep measurements to avoid compression of the device or the extender. However, manual settings of the attenuators are prone to human errors, and thus the repeatability of each measurement need be studied case-basis. This paper studies calibration accuracy of extenders, and the repeatability and reproducibility of a waveguide attenuator operating at 220 to 330 GHz. The average calibration variation of S 21 with three operators and three repeated calibrations over frequencies was -0.009 dB and 0.072° for directly connected frequency extenders. The measured setting accuracy of any waveguide setting was 1.4 dB (±2σ) over 15 dB range. The primary source of measured variation in S 11 and S 21 in variable attenuator setting measurements was due to repetition of measurements since there was no significant statistical difference between three operators.

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ISBN: 978-1-6654-0662-8
ISBN Print: 978-1-6654-0663-5
Article number: 9844108
DOI: 10.1109/arftg52954.2022.9844108
Host publication: 2022 98th ARFTG microwave measurement conference (ARFTG)
Conference: ARFTG Microwave Measurement Conference
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work has been financially supported in part by the Academy of Finland 6Genesis Flagship (grant 318927). Keysight Inc. has supported the research with measurement equipment donation.
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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