滤波网络(一)

π 型滤波网络

clc; clear; close all;

% ===== 参数 =====
C1 = 1e-6;      % F
L  = 10e-6;     % H
C2 = 1e-6;      % F
RL = 10;        % Ohm

% ===== 传递函数 =====
s = tf('s');
H = 1 / (1 + C1*s + (L/RL)*s + L*C2*s^2 + L*C1*C2*s^3);

% ===== Bode 图 =====
figure;
bode(H);
grid on;