A first resonance frequency is determined by the length of the rectangular microstrip antenna.
第一谐振频率由矩形微带天线的长度所决定。
An L-shaped band elimination filter 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。
To avoid the most dangerous resonance, the first vertical frequency of the bridge should be greater than the ratio of the maximum vehicle speed to the vehicle length in design.
为避免桥梁共振，设计时应满足第一阶竖向自振频率大于车辆最大速度与车辆长度的比值。
应用推荐