Sound surface wave band rejection filter ultrasonic generator 声表面波带阻滤波器超声波振荡器超声波发生器
Primary Study on Random Band pass& Band-rejection Filter Module 随机带通带阻滤波组件初探
The millimeter wave mixer with image recovery was presented, which used dielectric resonators at Ka band as the band rejection filter. 用介质谐振器作带阻滤波器制作毫米波镜像回收混频器。
At the same time it only uses a high Q Band Rejection Filter ( BRF) in relatively lower frequency, this indirect programmable trapping wave in wide range of higher frequency will be accomplished. 在警用扰频技术领域,间接可编程陷波法有着极其独特的应用优势,使用他可以在干扰频段范围内任意开辟出一个通讯频段窗口。
Design Method of A New Band-Pass and Band-Rejection Filter 一种新的带通、带阻滤波器设计方法
The former is potentially a broadband tunable band rejection filter or temperature sensor with enhanced sensitivity. 前者提供一种大范围波长调谐带阻滤波器或高灵敏度温度传感器的思路;
For narrow-band waveguide filter, it is very important to exactly analyze the major diameter inductive pin and select its relative circuit, which directly influence their key characteristics, such as relative bandwidth, insertion loss and out of band rejection of the filter. 对于窄带波导滤波器而言,大直径电感销钉的准确分析及其等效电路参数值的准确选择至关重要,直接影响滤波器的带宽、插损、带外抑制度等关键指标。