A RF Circuit for Overhauser Magnetometer Excitation

摘要：

Overhauser magnetometer is a device for magetostatic field measurement,RF excitation is necessary for nitrogen oxygen free radical solution. In this paper,design methods coupled with simulations of a RF circuits used in Overhauser magnetometer are presented. Functionally,a RF circuit consists of three parts,namely RF signal source,RF power amplifier and the load. Generation of a 70MHz RF signal will be described. Power amplification aimed to acquire the gain of 13-16dB will be presented. Finally we get a continuous sine wave of 70MHz,4-5W. We have validated that a linear polarization magnetic field is successfully generated inside the birdcage coil which meets the requirements of the Overhauser magnetometer. In this paper a number of conclusions are based on RF circuit simulation software ADS.

关键词： Overhauser magnetometer radio frequency (RF) birdcage coil excitation

作者: Wang Jiaoni Zhou Qianwei Zhang Shuang

作者单位: College of Electronic Science and Engineering Jilin University,Changchun,China

会议类型: 国际会议

会议名称: 2011 International Conference on Opto-Electronics Engineering and Information Science(2011光电电子工程与信息科学国际会议 ICOEIS 2011)

会议地点: 西安

会议语种:英文

页码: 1653-1657

在线出版日期: 2011-12-23（万方平台首次上网日期，不代表论文的发表时间）