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

被引：5

作者：

Otsuka, T. ^{[1
]}

Adachi, S. ^{[2
]}

Hattori, M. ^{[3
]}

Sakurai, Y. ^{[2
]}

Tajima, O. ^{[1
]}

机构：

[1] Kyoto Univ, Dept Phys, Sakyo Ku, Kitashirakawa Oiwakecho, Kyoto 6068502, Japan

[2] Univ Tokyo, Kavli Inst Phys & Math Universe WPI, Kashiwa, Chiba 2778583, Japan

[3] Tohoku Univ, Grad Sch Sci, Astron Inst, Aoba Ku, 6-3 Aramaki Aza Aoba, Sendai, Miyagi 9808578, Japan

来源：

APPLIED OPTICS | 2021年 / 60卷 / 25期

基金：

日本学术振兴会;

关键词：

All Open Access; Green;

D O I：

10.1364/AO.433254

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (C) 2021 Optical Society of America

引用

页码：7678 / 7685

页数：8

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