Pi Filter Calculator (LPF): LC Low Pass Filter Design

filter
low pass
lc filter
calculator
rf microwave

This Pi filter calculator functions as an LC low pass filter, primarily used for impedance matching. It determines the appropriate inductance (L) and capacitance (C) values based on the input cutoff frequency (fc) and impedance (Z0).

Pi LPF Calculator

Inputs

Outputs

This is a simple calculator to help you design an LC-based Pi filter for low pass filtering applications.

Example:

  • INPUTS: Fc = 900 MHz, Z0 = 50 Ohm
  • OUTPUTS: L = 1.76 x 10-8 Henries, C = 7.077 x 10-12 farads

Pi Low Pass Filter

Pi Low Pass Filter Formula

The following equations are used in this Pi filter calculator:

Pi LPF LC calculator formula

Microstrip Mitred Bend Calculator

Microstrip Mitred Bend Calculator

Calculate the dimensions for a microstrip mitred bend using this online calculator. Includes formula and example.

rf microwave
microstrip
mitred bend
Microstrip Width Calculator and Formula

Microstrip Width Calculator and Formula

Calculate the width of a microstrip line for a given impedance and substrate parameters using this calculator and explore the underlying formula.

microstrip
width
calculator