Study on scattering phenomena of mm-wave due to micro dielectric phenomena

Author

Murooka, Y. ; Nakano, T.

Author_Institution

Dept. of Electr. Eng., Nat. Defense Acad., Yokosuka, Japan

Volume

2

fYear

1994

fDate

3-8 Jul 1994

Firstpage

491

Abstract

Pre-breakdown and breakdown phenomena in liquids have been studied by using a high speed and optical observation technique. From the results, it is found that small bubbles, smaller than the wave length of light, played an important role of electronic conduction in liquids. In order to analyze the behavior of electron movement, the scattering phenomena of mm-wave due to the micro dielectric material smaller than the wave length of mm-wave have been investigated. The refraction phenomena of light is due to a small bubble under the light being a kind of electromagnetic wave. In this experiment, the mm-wave of 50 GHz is used and spherical glass whose sizes are 3, 6, 10, 12, 18, 24 and 30 mm in diameter are also used. The experimental results shows that the scattered electric field distribution measured using a 1 mm doublet antenna agrees qualitatively with the distribution calculated by the wave optics theory

Keywords

bubbles; electric breakdown; electric fields; electromagnetic wave scattering; electron mobility; insulation testing; light reflection; millimetre wave propagation; test equipment; 10 mm; 12 mm; 18 mm; 24 mm; 3 mm; 30 mm; 50 GHz; 6 mm; breakdown phenomena; bubbles; diameter; doublet antenna; electromagnetic wave; electron movement; electronic conduction; insulating liquids; light refraction; micro dielectric phenomena; millimetre wave scattering; pre-breakdown; scattered electric field distribution; spherical glass; wave optics theory; Dielectric materials; Electric breakdown; Electromagnetic refraction; Electromagnetic scattering; Electron optics; High speed optical techniques; Light scattering; Liquids; Optical refraction; Optical scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1994., Proceedings of the 4th International Conference on

Conference_Location

Brisbane, Qld.

Print_ISBN

0-7803-1307-0

Type

conf

DOI

10.1109/ICPADM.1994.414054

Filename

414054