波谱学杂志 ›› 1998, Vol. 15 ›› Issue (6): 557-561.

• 研究论文 • 上一篇    

L波段ESR谱仪用微波源和腔

傅济时1, 吴恩1, 刘凯2, 孙大铭2   

  1. 1. 北京大学物理系, 北京 100871;
    2. 北京市天玺科技开发公司
  • 收稿日期:1998-07-06 修回日期:1998-08-17 出版日期:1998-12-05 发布日期:2018-01-17
  • 作者简介:傅济时,男,59岁,教授
  • 基金资助:
    国家自然科学基金资助项目

L-BAND MICROWAVE OSILLATOR AND RESONATING CAVITY FOR ESR APPLICATIONS

Fu Jishi1, Wu En1, Liu Kai2, Sun Daming2   

  1. 1. Department of Physics, Peking University, Beijing 100871;
    2. Beijing Tianxi Sceince-Technology Development Corp
  • Received:1998-07-06 Revised:1998-08-17 Online:1998-12-05 Published:2018-01-17

摘要: 叙述了L波段压控振荡源和谐振腔的结构和性能.振荡器的振荡频率可在0.9-1.07GHz范围变更,输出功率大于10mW.附有锯齿波产生器,能在扫频方式工作.样品腔为方柱裂缝腔,插入圆柱形样品时,频率改变较小.腔输入为磁耦合,改变线圈与腔之间的距离可以改变耦合度.

关键词: ESR, 压控微波振荡器, 方柱裂缝腔

Abstract: The structure and the performance of L-band VCO and the resonating cavity are described in this paper.I ts osillating frequency can be tunned in the range of 0.9-1.07GHz, and its output power is more than 10mW.It can operate in scan-frequency mode by using a saw tooth generator.The sample cavity is a square-gap resonator.When a cylindrical sample is inserted into the cavity, the resonating frequency changes only a little.The microwave energy is fed to the cavity by magnetic coupling.While changing the distance between the coils and the cavity the coupling degree can be changed.

Key words: ESR, Voltage controlled microwave osillator, Square-gap resonator