HIGH-FREQUENCY MAGNETIC-FIELD SENSING COIL USING MICROSTRIP LINE

被引：4

作者：

YAMAGUCHI, M

YABUKAMI, S

ARAI, KI

机构：

[1] Research Institute of Electrical Communication, Tohoku University, Sendai 980-77, 2-1-1 Katahira, Aoba-Ku

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1995年 / 31卷 / 06期

关键词：

D O I：

10.1109/20.490318

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An analysis of magnetic field sensing coil using microstrip line is presented. Broad-bandwidth magnetic sensor is built in which the characteristic impedance is determined to be 50 Omega. We examined the coil size dependence for the output voltage and coil impedance as well as three dimensional ac field analysis. The output voltage of the coil is produced by a varying magnetic field linking the closed circuit loop which is composed of the microstrip conductor, 50 Omega resistor, and the ground plane below radiation frequency. Eddy current generated in the ground plane decreases the output voltage of microstrip coil. Optimum design depends on the trade off between impedance matching and increase in output voltage.

引用

页码：3173 / 3175

页数：3

共 5 条

[1] SEMIAUTOMATIC PERMEANCE TESTER FOR THICK MAGNETIC-FILMS [J].