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发明公开
CN110365308A 一种基于切比雪夫Ⅱ型的可调谐有源RC带通滤波器 无效 - 驳回

一种基于切比雪夫Ⅱ型的可调谐有源RC带通滤波器
摘要：
本发明公开了一种基于切比雪夫Ⅱ型的可调谐有源RC带通滤波器，该带通滤波器由基于切比雪夫Ⅱ型的N级带通滤波单元，M级低通滤波单元，L级高通滤波单元构成，其中N≥1，M≥1，L≥1，通过调节其中的电阻电容值来调节带通滤波器的中心频率，带宽以及带内平坦度，很好地实现对噪声和其他信道信号的抑制，得到所需频带的有用信号。该电路结构具有调节范围大，调节精度高的优点。
摘要（英）：

The invention discloses a tunable active RC band-pass filter based on Chebyshev II type. The band-pass filter is composed of a N stage band-pass filtering unit based on Chebyshev II type, an M stage band-pass filtering unit, and an L stage high-pass filtering unit, wherein N is larger than or equal to 1, M is larger than or equal to 1, L is larger than or equal to 1. The center frequency, the bandwidth and the in-band flatness of the band-pass filter are adjusted by adjusting the resistance and capacitance values of the band-pass filter, noise and other channel signals are well restrained, anduseful signals of the needed frequency band are obtained. The circuit structure has the advantages of large adjustment range and high adjustment precision.

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