FLANGED COAXIAL MICROWAVE PROBES FOR MEASURING THIN MOISTURE LAYERS

被引：30

作者：

LI, LL

ISMAIL, NH

TAYLOR, LS

DAVIS, CC

机构：

[1] Department of Electrical Engineering, University of Maryland, College Park

[2] Department of Electrical Engineering, University of Maryland, College Park

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 1992年 / 39卷 / 01期

关键词：

D O I：

10.1109/10.108127

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We obtain an analytical, closed-form expression for the input admittance of a flanged, open-ended coaxial line radiating into a layered lossy material. The effect of higher modes as well as the dominant mode have been taken into consideration. The results obtained in the experimental measurement of the microwave reflection coefficient of the probe radiating into very thin water layers are described and compared with the results obtained from numerical calculations based on a theoretical model. The measurements were made in the 5.0-7.0 GHz range. The results demonstrate, for example, the usefulness of this type of device in measuring thin moisture layers in the outer layer of the human skin.

引用

页码：49 / 57

页数：9

共 12 条

[1] ANALYSIS OF AN OPEN-ENDED COAXIAL LINE SENSOR IN LAYERED DIELECTRICS [J].