Accuracy improvement in permittivity measurement of construction materials by use of a model of the standing wave method in free space

Author

Miyakawa, Michio ; Yaguchi, Kenichi ; Ishii, Nozomu ; Saeki, Tatsuhiko ; Kanai, Yasushi

Author_Institution

Fac. of Eng., Niigata Univ., Japan

Volume

2

fYear

2002

fDate

19-23 Aug. 2002

Firstpage

809

Abstract

A model of the measuring system has been developed to estimate accurately the complex permittivity of construction materials based on the standing wave method in free space. It is assumed in the model that the standing wave distribution is represented by the sum of the incident-, reflected- and scattered-wave components. In this paper, the measurement conditions of the model based measuring method have been discussed by means of computer simulation using FDTD techniques. It has been concluded that the size of the materials should be larger than 600 millimeters square in order to estimate complex permittivity accurately by the model based method.

Keywords

digital simulation; electrical engineering computing; finite difference time-domain analysis; least squares approximations; permittivity measurement; FDTD techniques; complex permittivity; computer simulation; construction materials; free space; least-squares method; measuring system model; model based method; permittivity measurement; standing wave method; Biological materials; Building materials; Circuit testing; Distortion measurement; Equivalent circuits; Extraterrestrial measurements; Impedance measurement; Materials testing; Permittivity measurement; Scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2002. EMC 2002. IEEE International Symposium on

Conference_Location

Minneapolis, MN, USA

Print_ISBN

0-7803-7264-6

Type

conf

DOI

10.1109/ISEMC.2002.1032699

Filename

1032699