Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1994-11-01 |
タイトル |
|
|
タイトル |
DIELECTRIC PROPERTIES OF ICE AT 5.1 AND 9.7GHz USING CAVITY RESONATOR |
言語 |
|
|
言語 |
eng |
資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
ID登録 |
|
|
ID登録 |
10.15094/00003857 |
|
ID登録タイプ |
JaLC |
ページ属性 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
P(論文) |
記事種別(英) |
|
|
|
en |
|
|
ABSTRACT |
論文名よみ |
|
|
その他のタイトル |
DIELECTRIC PROPERTIES OF ICE AT 5.1 AND 9.7GHz USING CAVITY RESONATOR |
著者名よみ |
マツオカ, タケシ
フジタ, シュウジ
モリシマ, シゲノリ
マエ, シンジ
|
著者名(英) |
MATSUOKA, Takeshi
FUJITA, Shuji
MORISHIMA, Shigenori
MAE, Shinji
|
著者所属(英) |
|
|
|
en |
|
|
Department of Applied Physics, Faculty of Engineering, Hokkaido University |
著者所属(英) |
|
|
|
en |
|
|
Department of Applied Physics, Faculty of Engineering, Hokkaido University |
著者所属(英) |
|
|
|
en |
|
|
Department of Applied Physics, Faculty of Engineering, Hokkaido University |
著者所属(英) |
|
|
|
en |
|
|
Department of Applied Physics, Faculty of Engineering, Hokkaido University |
抄録(英) |
|
|
内容記述タイプ |
Other |
|
内容記述 |
The relative complex dielectric permittivity (ε^*=ε'-iε") of ice was investigated at 5.1 and 9.7GHz by the cavity resonator method. The purpose of the measurement was to clarify the dielectric properties, especially the loss tangent (tan δ=ε"/ε'), of ice at microwave frequencies. Because the tan δvalues of ice at microwave frequencies reported in past investigations were contradictory among several investigators by factors larger than 10,it was necessary to obtain the precise values of tan δ for application to microwave remote sensing of the cryosphere. In this study, we used the cavity resonator method, which is suitable for low loss materials such as ice. Ice samples were polycrystalline and made from deionized water. The experimental results were as follows : The values of tan δ were 1.9-2.8×(10)^<-4> at 9.7GHz and 1.5-2.5×(10)^<-4> at 5.1GHz in the temperature range -20℃ to -2℃. Thus, the values of tan δ of ice at 9.7 GHz were larger than that of ice at 5.1GHz; both of them were of the order of (10)^<-4>. It was confirmed that the values of tan δ of ice at 9.7 and 5.1GHz were not of the order of (10)^<-3> (experimental results of CUMMING (J.Appl. Phys., 23,768,1952)) but (10)^<-4> (similar to the experimental results of MATZLER and WEGMULLER (J. Phys. D : Appl. Phys., 20,1623,1987)). |
雑誌書誌ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA10756213 |
書誌情報 |
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
巻 8,
p. 200,
発行日 1994-11
|
出版者 |
|
|
出版者 |
National Institute of Polar Research |