Calculators » RF and Microwave » Pi Filter Calculator: LC High Pass Filter Design

Pi Filter Calculator: LC High Pass Filter Design

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This Pi filter calculator is used as an LC high pass filter for impedance matching. It takes the cutoff frequency (fc) and Z0 as input and calculates the inductance (L) and capacitance (C) values.

Pi HPF Calculator

Inputs

Outputs

Following is a simple LC-based Pi filter calculator used for high pass filtering.

Example:

  • INPUTS: Fc = 900 MHz, Z0 = 50 Ohm
  • OUTPUTS: L = 4.42 x 10-9 Henries, C = 1.76 x 10-12 farads

Pi High Pass Filter

Pi High Pass Filter Formula

Following are the equations used in this Pi filter:

Pi HPF LC calculator formula