L波段ESR谱仪用微波源和腔  

L-BAND MICROWAVE OSILLATOR AND RESONATING CAVITY FOR ESR APPLICATIONS

作　　者：傅济时[1,2] 吴恩[1,2] 刘 孙大铭 

机构地区：[1]北京大学物理系 [2]北京市天玺科技开发公司

出　　处：《波谱学杂志》1998年第6期557-561,共5页Chinese Journal of Magnetic Resonance

基　　金：国家自然科学基金

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。The structure and the performance of L band VCO and the resonating cavity are described in this paper. Its 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 sawtooth 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.

关 键 词：ESR 谱仪 压控 微波振荡器 方柱裂缝腔 微波源 

分 类 号：TH834.03[机械工程—仪器科学与技术]