偶数阶巴特沃斯高通滤波器优化设计与仿真

Optimal Design and Simulation of Even-order Butterworth High-pass Filter

对二阶压控电压源巴特沃斯高通滤波器的设计进行了理论推导,给出了通用表达式,并在此基础上设计了四阶单位增益的高通滤波器;通过Multisim 10仿真软件对设计的高通滤波器进行了仿真,研究了电路中电容间容值的不同比值k对设计的高通滤波器幅频特性的影响,指出不同位置电阻、电容的变化对滤波器特性的影响不同,为不同位置的电阻、电容精度的选择提供依据,由此指导偶数阶巴特沃斯高通滤波器的设计.

The design of Butterworth high-pass filter of second-order voltage-controlled voltage source is derived theoretically and a common expression is given. On the basis of the design the forth order unity-gain low-pass filter is designed. The high-pass filter is simulated by Mnlfisim10 simulation software. Influence of the ratio k between the capacitance in the circuit on amplitude-frequency changes of resistance and capacitance in different characteristics of the high-pass filter is studied. It is indicated that positions influence filter＇s characteristics differently. That is a basis for precision selection of resistors and capacitors in different positions to guide the design of even-order Butterworth high-pass filter.