...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Sensors and Actuators, A. Physical >Spin wave linewidth measurement of microwave ferrite materials using rectangular resonant cavity with adjustable frequency
【24h】

Spin wave linewidth measurement of microwave ferrite materials using rectangular resonant cavity with adjustable frequency

机译：可调频率矩形谐振腔测量微波铁氧体材料的自旋波线宽

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The traditional method to measure the spin wave linewidth of ferrite material uses a high-power microwave source with adjustable frequency and a rectangular cavity with fixed frequency. However, the microwave source with adjustable is more expensive and inaccurate. In this paper, we propose a new and economic method to tackle these problems. A microwave source with a fixed frequency instead of the adjustable one and an adjustable cavity are employed. The resonant frequencies of the cavity loaded with different samples are adjusted to the same value with the frequency of the microwave source. This means the proposed system has better performance in terms of accuracy and operation. Besides, an adjustable high-power attenuator and an isolator are employed to replace the power divider and high-power termination in other systems, which makes the operation more convenient. Experiments verify that a wider linewidth ranging from 1-35 Oe can be measured accurately and the uncertainty of the linewidth can be estimated within +/- 15%. (C) 2015 Elsevier B.V. All rights reserved.
机译：测量铁氧体材料自旋波线宽的传统方法是使用频率可调的大功率微波源和频率固定的矩形腔。然而，可调节的微波源更昂贵且不准确。在本文中，我们提出了一种解决这些问题的经济新方法。使用具有固定频率的微波源而不是可调频率的微波源和可调腔。将装有不同样品的空腔的谐振频率调整为与微波源的频率相同的值。这意味着所提出的系统在准确性和操作性方面具有更好的性能。此外，在其他系统中，采用可调大功率衰减器和隔离器代替了分压器和大功率终端，使操作更加方便。实验证明，可以精确测量范围为1-35 Oe的较宽线宽，并且线宽的不确定性可以估计在+/- 15％之内。 （C）2015 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号