Impedance-matching system for a flexible surface-coil-type resonator

被引：9

作者：

Hirata, H

Ono, M

机构：

[1] Dept. of Elec. Eng. and Comp. Sci., Yamagata University, Johnan, Yonezawa

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1997年 / 68卷 / 09期

关键词：

D O I：

10.1063/1.1148318

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This article describes an impedance-matching system for a flexible surface-coil-type resonator (FSCR) used in electron paramagnetic resonance (EPR) experiments. To design the matching system, the input impedance of the FSCR was formulated using transmission line theory, and then the parameters of a matching circuit using varicap diodes were calculated. Experimental measurements of input impedance showed the validity of the formulation and the usefulness of the matching system. The matching circuit made by the varicap diodes 1SV186 offered the tunable bandwidth of 50 MHz for the prototype FSCR. Such a matching system also offers the possibility of remotely tuning EPR resonators electronically. (C) 1997 American Institute of Physics.

引用

页码：3528 / 3532

页数：5

共 27 条

[1] MAPPING OF METABOLITES IN WHOLE ANIMALS BY P-31 NMR USING SURFACE COILS [J].