講演抄録/キーワード |
講演名 |
2005-04-28 15:15
酸化チタン多孔体を用いたW-band 電波吸収体の試作 ○山上祐希(日本工大)・入江正樹(東芝セラミックス)・佐々木晃一・渡辺康夫(日本工大)・白井 宏(東芝セラミックス) |
抄録 |
(和) |
近年,無線LANや自動車レーダ等に見られるように,ミリ波帯電波以上の利用が進みつつあり,これに沿って高周波帯における電波吸収体の開発研究が行われている.高周波帯電波吸収体に求められる性能として,薄形・軽量,耐環境性能,広帯域,広角度性能,両偏波対応が挙げられる.電波吸収体の実現には,電波吸収体材料の電気材料定数の計測,電波吸収体材料の理論的検討,厚みの設計及び電波吸収体の製造,吸収量の計測及び特性評価の4つの過程が必要となる.
本稿では,不燃性,耐候性,意匠性に優れ,軽量な酸化チタン多孔体を用い,Wバンド電波吸収体を試作評価した結果を報告する.実験方法として,試作した電波吸収体の複素比誘電率を計測し,電界ベクトル回転法と反射電力法を用い吸収量計測を行った.その結果,Wバンドでの電波吸収体の作製が可能であることを示した. |
(英) |
As the utilization of radio wave advances toward higher frequency as ever, as witness recent wireless LAN and automotive radars, the research and development of higher frequency wave absorber have been in progress as well. Such absorbers are required to have high frequency performance, wide bandwidth, wide angle and both polarization, along with the property of thin thickness, lightweight and weatherproof. In order to realize a new wave absorber, four processes are necessary. Namely, the measurement of electrical property of absorber materials, theoretical examination of materials, design of thickness and process of manufacturing, and the measurement of absorption characteristics and evaluation.
In this paper, it is reported that, by using porous TiO2, which is advantageously non-inflammable, durable, design-fit and lightweight , a wave absorber has been experimentally manufactured and evaluated. As the experimental method, the complex dielectric constant of trial manufactured wave absorbers is measured, and the absorption characteristics is measured by the electric field vector rotational method. As a result, it is verified that the wave absorber for millimeter wave band is feasible by making use of porous titania. |
キーワード |
(和) |
ミリ波 / 電波吸収体 / 酸化チタン多孔体 / 電界ベクトル回転法 / / / / |
(英) |
Millimeter Waves / Wave Absorber / Porous TiO2 / Electric Field Vector Rotational method / / / / |
文献情報 |
信学技報, vol. 105, no. 35, SANE2005-6, pp. 29-34, 2005年4月. |
資料番号 |
SANE2005-6 |
発行日 |
2005-04-21 (SANE) |
ISSN |
Print edition: ISSN 0913-5685 |
PDFダウンロード |
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