Coherence-Distance Estimation of Non-Linear Mode-Stirring Mechanisms

S.J. Verwer; A. Hubrechsen; L.A. Bronckers; A.C.F. Reniers; A.B. Smolders

doi:10.1109/AP-S/USNC-URSI47032.2022.9886087

Coherence-Distance Estimation of Non-Linear Mode-Stirring Mechanisms

S.J. Verwer, A. Hubrechsen, L.A. Bronckers, A.C.F. Reniers, A.B. Smolders

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

1 Citation (Scopus)

102 Downloads (Pure)

Abstract

One of the main sources of uncertainty when measuring antenna characteristics in a reverberation chamber is correlation. Current methods of determining correlation between mode-stirring positions, such as autocorrelation, are constant over absolute stirrer positions. This work shows that the coherence distance can vary over position using the Pearson-correlation method to determine the coherence distance of mode stirring mechanisms. From this it will be shown that the autocorrelation method underestimates the actual coherence distance. Using this method, stirring sequences can be optimized and thus antenna measurements inside a reverberation chamber can be improved.

Original language	English
Title of host publication	2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers
Pages	629-630
Number of pages	2
ISBN (Electronic)	978-1-6654-9658-2
ISBN (Print)	978-1-6654-9659-9
DOIs	https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886087
Publication status	Published - 21 Sept 2022
Event	2022 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2022 - Denver, United States Duration: 10 Jul 2022 → 15 Jul 2022 https://2022apsursi.org/

Conference

Conference	2022 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2022
Country/Territory	United States
City	Denver
Period	10/07/22 → 15/07/22
Internet address	https://2022apsursi.org/

Keywords

Coherence distance
Correlation
Mode-stirring Mechanisms
Oscillating-wall stirrer
Reverberation chamber

Access to Document

10.1109/AP-S/USNC-URSI47032.2022.9886087

20220521_APS_2022__Coherence_Distance_Estimation_of_Non_Linear_Mode_Stirring_Mechanisms_FinalAuthorFinal author version , 234 KB

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Verwer, S. J., Hubrechsen, A., Bronckers, L. A., Reniers, A. C. F., & Smolders, A. B. (2022). Coherence-Distance Estimation of Non-Linear Mode-Stirring Mechanisms. In 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings (pp. 629-630). Article 9886087 Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886087

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abstract = "One of the main sources of uncertainty when measuring antenna characteristics in a reverberation chamber is correlation. Current methods of determining correlation between mode-stirring positions, such as autocorrelation, are constant over absolute stirrer positions. This work shows that the coherence distance can vary over position using the Pearson-correlation method to determine the coherence distance of mode stirring mechanisms. From this it will be shown that the autocorrelation method underestimates the actual coherence distance. Using this method, stirring sequences can be optimized and thus antenna measurements inside a reverberation chamber can be improved.",

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publisher = "Institute of Electrical and Electronics Engineers",

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Verwer, SJ , Hubrechsen, A , Bronckers, LA , Reniers, ACF & Smolders, AB 2022, Coherence-Distance Estimation of Non-Linear Mode-Stirring Mechanisms. in 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings., 9886087, Institute of Electrical and Electronics Engineers, pp. 629-630, 2022 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2022, Denver, Colorado, United States, 10/07/22. https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886087

Coherence-Distance Estimation of Non-Linear Mode-Stirring Mechanisms. / Verwer, S.J.; Hubrechsen, A.; Bronckers, L.A. et al.
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings. Institute of Electrical and Electronics Engineers, 2022. p. 629-630 9886087.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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T1 - Coherence-Distance Estimation of Non-Linear Mode-Stirring Mechanisms

AU - Verwer, S.J.

AU - Hubrechsen, A.

AU - Bronckers, L.A.

AU - Reniers, A.C.F.

AU - Smolders, A.B.

PY - 2022/9/21

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N2 - One of the main sources of uncertainty when measuring antenna characteristics in a reverberation chamber is correlation. Current methods of determining correlation between mode-stirring positions, such as autocorrelation, are constant over absolute stirrer positions. This work shows that the coherence distance can vary over position using the Pearson-correlation method to determine the coherence distance of mode stirring mechanisms. From this it will be shown that the autocorrelation method underestimates the actual coherence distance. Using this method, stirring sequences can be optimized and thus antenna measurements inside a reverberation chamber can be improved.

AB - One of the main sources of uncertainty when measuring antenna characteristics in a reverberation chamber is correlation. Current methods of determining correlation between mode-stirring positions, such as autocorrelation, are constant over absolute stirrer positions. This work shows that the coherence distance can vary over position using the Pearson-correlation method to determine the coherence distance of mode stirring mechanisms. From this it will be shown that the autocorrelation method underestimates the actual coherence distance. Using this method, stirring sequences can be optimized and thus antenna measurements inside a reverberation chamber can be improved.

KW - Coherence distance

KW - Correlation

KW - Mode-stirring Mechanisms

KW - Oscillating-wall stirrer

KW - Reverberation chamber

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BT - 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings

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Verwer SJ , Hubrechsen A , Bronckers LA , Reniers ACF , Smolders AB. Coherence-Distance Estimation of Non-Linear Mode-Stirring Mechanisms. In 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings. Institute of Electrical and Electronics Engineers. 2022. p. 629-630. 9886087 doi: 10.1109/AP-S/USNC-URSI47032.2022.9886087

Coherence-Distance Estimation of Non-Linear Mode-Stirring Mechanisms

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Keywords

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Reverberation-Chamber Performance of the Oscillating-Wall Stirrer for Estimating Antenna Efficiency

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