An L-shaped bandeliminationfilter on the T-shaped joint part is also used for restricting the resonance of the frequency multiplication of the first resonance frequency.
位于T形接合部上的L形带阻滤波器亦用来抑制第一谐振频率的倍频的谐振。
2
Band-pass filter often used in anti-jamming devices, in order to receive a valid signal within the band, while the elimination of high frequency and low frequency interference and noise.