bandwith of high pass filter

1 次查看（过去 30 天）

suketu vaidya 2020-12-25

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/702147-bandwith-of-high-pass-filter

回答： Raunak Gupta 2020-12-31

num = [-c1/c4, 0, 0];
den = [1, (c1+c4+c3)/(R5*c4*c3), 1/(R5*R2*c4*c3)];
H_HP = tf(num, den);
wcut=sqrt(1/(R5*R2*c4*c3));
Q=wcut/((c1+c4+c3)/(R5*c4*c3));
figure;
bode(H_HP)
slope=H_HP/2

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Raunak Gupta 2020-12-31

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/702147-bandwith-of-high-pass-filter#answer_587968

Hi,

I am not sure if the code is to find the bandwidth, but in my opinion bandwidth must not exist for a high pass filter since it is able to pass all the frequency components above a certain cutoff frequency. So, a cutoff frequency make sense but bandwidth for a high pass filter is not something which can be find.