摘要
一种新型的采用电流加权结构的静磁表面波电调谐带通滤波器已经实现,其指标为:三分贝频带宽度约40MHz(S波段),带外抑制比约35dB,电调谐范围1GHz。该器件可望在信号处理系统中得到应用。
A new type of filter-magnetostatic surface wave tunable band pass filter using current weighting transducer arrays has been built. S band 30-50 MHz bandpass filter was realized with a sidelobe suppression of 30 dB. The usable tunability range of the device was from 2.5 to 3.5 GHz. It is hopeful that the application of device in signal processing system can be found.The operation principle and construction of MSSW-CWF are presented. In the end of paper, a picture of model and some theoritical and exprimental results of device are given.
出处
《通信学报》
EI
CSCD
北大核心
1990年第4期62-66,27,共6页
Journal on Communications
基金
国家自然科学基金
