The theoretical results show that for TM waves there exist frequency passband (s) and stopband (s) which can be switched into each other by varying the power.
理论分析表明，非线性TM表面波存在频率通带和禁带，通过调节导波功率可以实现通带和禁带之间的转换。
Two parameters are used to specify the characteristics of a BPF: passband centre frequency and resonance bandwidth.
带通滤波器的特性通过两个参数表示：带通中心频率和共鸣带宽。
Due to the frequency pulling of FLL, the passband of the filter in PLL can be made very narrow to suppress the noise, and the PLL can lock carrier's phase with high accuracy.
由于有锁频环的频率牵引，锁相环路滤波器可以设计得很窄，具有很好的抑噪性能，满足精确跟踪载波相位的要求。
In this paper, a novel design method of a passband edge frequency continuous adjustable FIR filter is presented.
提出了一种通带截止频率连续可调的低通滤波器的新的设计方法。
With electrode thickness increases, passband ripple becomes smaller, center frequency moves toward lower frequency.
当电极厚度增加时，通带的涟波会变小，中心频率会降低。
The filter has a pair of transmission zeros around the passband, excellent frequency response and frequency selectivity.
该滤波器在通带附近有一对传输零点，具有良好的频率响应以及频率选择特性。
According to "virtual short" and "virtual-off" feature, available to the circuit passband voltage gain and pass-band cut-off frequency.
根据“虚短”和“虚断”的特点，可得到电路的通带电压放大倍数和通带截止频率。
According to "virtual short" and "virtual-off" feature, available to the circuit passband voltage gain and pass-band cut-off frequency.
根据“虚短”和“虚断”的特点，可得到电路的通带电压放大倍数和通带截止频率。
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