Material survey for a millimeter-wave absorber using a 3D-printed mold

T. Otsuka; S. Adachi; M. Hattori; Y. Sakurai; O. Tajima

doi:10.1364/AO.433254

Material survey for a millimeter-wave absorber using a 3D-printed mold

T. Otsuka, S. Adachi, M. Hattori, Y. Sakurai, O. Tajima

Research output: Contribution to journal › Review article › peer-review

1 Citation (Scopus)

Abstract

Radio absorptive materials (RAMs) are key elements for receivers in the millimeter-wave range. We previously established a method for production of RAM by using a 3D-printed mold. An advantage of this method is a wide range of choices for absorptive materials to be used. To take advantage of this flexibility, we added a range of absorptive materials to a base epoxy resin, STYCAST-2850FT, and examined the optical performance of the resultant RAM across a wide frequency range under cryogenic conditions. We found that adding a particular type of carbon fiber produced the best performance with a reflectance at 77 K estimated as 0.01%-3% over a frequency range of 20-300 GHz.

Original language	English
Pages (from-to)	7678-7685
Number of pages	8
Journal	Applied Optics
Volume	60
Issue number	25
DOIs	https://doi.org/10.1364/AO.433254
Publication status	Published - Sept 1 2021
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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10.1364/AO.433254

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@article{758e352776c54d7fb3164b64e8636474,

title = "Material survey for a millimeter-wave absorber using a 3D-printed mold",

abstract = "Radio absorptive materials (RAMs) are key elements for receivers in the millimeter-wave range. We previously established a method for production of RAM by using a 3D-printed mold. An advantage of this method is a wide range of choices for absorptive materials to be used. To take advantage of this flexibility, we added a range of absorptive materials to a base epoxy resin, STYCAST-2850FT, and examined the optical performance of the resultant RAM across a wide frequency range under cryogenic conditions. We found that adding a particular type of carbon fiber produced the best performance with a reflectance at 77 K estimated as 0.01%-3% over a frequency range of 20-300 GHz.",

author = "T. Otsuka and S. Adachi and M. Hattori and Y. Sakurai and O. Tajima",

note = "Funding Information: Acknowledgment. We thank Toyo Aluminium K.K., Ito Graphite Co. Ltd., Mitsubishi Chemical Corp., Almedio INC., Zeon Nano Technology Co. Ltd., Henkel AG & Co. KGaA, E&C Engineering K.K., and CEMEDINE CO. LTD. for providing us with the absorptive materials used in this paper. This work is supported by JSPS KAKENHI and also by World Premier International Research Center Initiative (WPI), MEXT, Japan. TO acknowledges the JSPS core-to-core program JPJSCCA20200003 for his travel support. SA also acknowledges JP17H06134, JP18J01039, and JP21H00071. We thank Tomotake Matsumura and Edanz (https://jp.edanz.com/ac) for editing a draft of this paper. Publisher Copyright: {\textcopyright} 2021 Optical Society of America.",

year = "2021",

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doi = "10.1364/AO.433254",

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AU - Otsuka, T.

AU - Adachi, S.

AU - Hattori, M.

AU - Sakurai, Y.

AU - Tajima, O.

N1 - Funding Information: Acknowledgment. We thank Toyo Aluminium K.K., Ito Graphite Co. Ltd., Mitsubishi Chemical Corp., Almedio INC., Zeon Nano Technology Co. Ltd., Henkel AG & Co. KGaA, E&C Engineering K.K., and CEMEDINE CO. LTD. for providing us with the absorptive materials used in this paper. This work is supported by JSPS KAKENHI and also by World Premier International Research Center Initiative (WPI), MEXT, Japan. TO acknowledges the JSPS core-to-core program JPJSCCA20200003 for his travel support. SA also acknowledges JP17H06134, JP18J01039, and JP21H00071. We thank Tomotake Matsumura and Edanz (https://jp.edanz.com/ac) for editing a draft of this paper. Publisher Copyright: © 2021 Optical Society of America.

PY - 2021/9/1

Y1 - 2021/9/1

N2 - Radio absorptive materials (RAMs) are key elements for receivers in the millimeter-wave range. We previously established a method for production of RAM by using a 3D-printed mold. An advantage of this method is a wide range of choices for absorptive materials to be used. To take advantage of this flexibility, we added a range of absorptive materials to a base epoxy resin, STYCAST-2850FT, and examined the optical performance of the resultant RAM across a wide frequency range under cryogenic conditions. We found that adding a particular type of carbon fiber produced the best performance with a reflectance at 77 K estimated as 0.01%-3% over a frequency range of 20-300 GHz.

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Material survey for a millimeter-wave absorber using a 3D-printed mold

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