A novel of helical filter used in the cable television system has been brought forward and realized.
提出并实现了一种用于有线电视系统的螺旋滤波器结构 ,该滤波器中心频率为 130MHz ,3dB带宽设计为 1。
Study on main performance indices of rotary capacitor filter;
旋转电容滤波器主要性能指标研究
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