Designing microwave absorber shape by using optimization

Ibrahim Catalkaya; Sedef Kent

doi:10.1109/RAST.2017.8003004

Designing microwave absorber shape by using optimization

Ibrahim Catalkaya, Sedef Kent

Department of Electronics and Communication Engineering

Istanbul Technical University

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

1 Citation (Scopus)

Abstract

Microwave absorbers are used inside of anechoic chamber along its wall, ceiling and floor to perform EMC / EMI measurements. Anechoic chambers are also used to perform measurements for EMC / EMI requirements of spacecraft on-orbit. Wedge and pyramidal type absorbers are commonly used type of absorbers to cover chamber walls. Shape of them is one of major factor to absorb energy of incident EM wave. New absorber shapes can help to improve absorption performance of absorbers and provide accuracy of measurements. In this study, an alternative microwave absorber shape is obtained by using optimization methods. Reflection characteristic of new designed absorber is presented. Absorber is analyzed by using Periodic Moment Method (PMM). 2-10 GHz frequency band is considered for reflection value calculations of absorber. TM mode normal incidence case electromagnetic waves are employed for the calculations within the 2-10 GHz frequency band. Bistatic pattern characteristics of absorber are presented at 2, 4, and 6 GHz. Using optimization methods to obtain optimized power function shaped absorber is an important contribution of the study.

Original language	English
Title of host publication	Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017
Editors	M.F. Unal, A. Hacioglu, M.S. Yildiz, O. Altan, M. Yorukoglu
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	27-30
Number of pages	4
ISBN (Electronic)	9781538616031
DOIs	https://doi.org/10.1109/RAST.2017.8003004
Publication status	Published - 4 Aug 2017
Event	8th International Conference on Recent Advances in Space Technologies, RAST 2017 - Istanbul, Turkey Duration: 19 Jun 2017 → 22 Jun 2017

Publication series

Name	Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017

Conference

Conference	8th International Conference on Recent Advances in Space Technologies, RAST 2017
Country/Territory	Turkey
City	Istanbul
Period	19/06/17 → 22/06/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

Funding

ACKNOWLEDGMENT This research has been supported by the Istanbul Technical University BAP Foundation, project number 36033.

Funders	Funder number
Istanbul Technical University BAP Foundation	36033

Keywords

anechoic chamber
electromagnetic scattering
lossy periodic structures
microwave absorber shape
optimization

Access to Document

10.1109/RAST.2017.8003004

Cite this

Catalkaya, I., & Kent, S. (2017). Designing microwave absorber shape by using optimization. In M. F. Unal, A. Hacioglu, M. S. Yildiz, O. Altan, & M. Yorukoglu (Eds.), Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017 (pp. 27-30). Article 8003004 (Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RAST.2017.8003004

Catalkaya, Ibrahim ; Kent, Sedef. / Designing microwave absorber shape by using optimization. Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017. editor / M.F. Unal ; A. Hacioglu ; M.S. Yildiz ; O. Altan ; M. Yorukoglu. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 27-30 (Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017).

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abstract = "Microwave absorbers are used inside of anechoic chamber along its wall, ceiling and floor to perform EMC / EMI measurements. Anechoic chambers are also used to perform measurements for EMC / EMI requirements of spacecraft on-orbit. Wedge and pyramidal type absorbers are commonly used type of absorbers to cover chamber walls. Shape of them is one of major factor to absorb energy of incident EM wave. New absorber shapes can help to improve absorption performance of absorbers and provide accuracy of measurements. In this study, an alternative microwave absorber shape is obtained by using optimization methods. Reflection characteristic of new designed absorber is presented. Absorber is analyzed by using Periodic Moment Method (PMM). 2-10 GHz frequency band is considered for reflection value calculations of absorber. TM mode normal incidence case electromagnetic waves are employed for the calculations within the 2-10 GHz frequency band. Bistatic pattern characteristics of absorber are presented at 2, 4, and 6 GHz. Using optimization methods to obtain optimized power function shaped absorber is an important contribution of the study.",

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author = "Ibrahim Catalkaya and Sedef Kent",

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Catalkaya, I & Kent, S 2017, Designing microwave absorber shape by using optimization. in MF Unal, A Hacioglu, MS Yildiz, O Altan & M Yorukoglu (eds), Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017., 8003004, Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017, Institute of Electrical and Electronics Engineers Inc., pp. 27-30, 8th International Conference on Recent Advances in Space Technologies, RAST 2017, Istanbul, Turkey, 19/06/17. https://doi.org/10.1109/RAST.2017.8003004

Designing microwave absorber shape by using optimization. / Catalkaya, Ibrahim; Kent, Sedef.
Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017. ed. / M.F. Unal; A. Hacioglu; M.S. Yildiz; O. Altan; M. Yorukoglu. Institute of Electrical and Electronics Engineers Inc., 2017. p. 27-30 8003004 (Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017).

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

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ER -

Catalkaya I, Kent S. Designing microwave absorber shape by using optimization. In Unal MF, Hacioglu A, Yildiz MS, Altan O, Yorukoglu M, editors, Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 27-30. 8003004. (Proceedings of 8th International Conference on Recent Advances in Space Technologies, RAST 2017). doi: 10.1109/RAST.2017.8003004

Designing microwave absorber shape by using optimization

Abstract

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Bibliographical note

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Keywords

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