RF Filter calculator | Microstrip filter calculator, Low pass, Bandpass
This RF filter calculator is used for microstrip filter calculations. It covers low pass and bandpass rf filter calculators used in microstrip designs. Both pi filter and T filter section filter topologies are covered.
Microstrip Low pass filter calculator
Following is a simple LC based RF lowpass filter calculator of order N equal to 3.
Example of RF Filter Calculator of lowpass type:
INPUTS : Fc =1182.5 MHz, Z0 = 50 Ohm
OUTPUTS: L = 1.34e-8 Henries, C = 5.38e-12 farads
Microstrip low pass filter Formula
Following are the equations used in RF lowpass filter calculator of order N equal to 3. Figure-1 depicts lowpass pi filter and T filter section topologies. This simple RF filter calculator made of L and C components is very useful.
Microstrip Bandpass filter calculator
Following is a simple LC based RF bandpass filter calculator of order N equal to 3.
Example of Microstrip Filter Calculator of bandpass type:
INPUTS : f1 = 1024.5 MHz, f2 = 1060.5 MHz, Z01 = 50 Ohm
OUTPUTS: L1 = 4.42e-7 Henries , L2 = 1.319e-10 Henries, C1 = 5.276e-14 farads , C2 = 1.76e-10 Farads
Microstrip Bandpass filter formula
Figure-2 depicts bandpass pi filter and T filter section topologies.
Following are the equations for above mentioned RF bandpass filter topologies.
L1 = [ Z0/ (Pi*(f2-f1)) ] ..... Henries
L2 = [ Z0*(f2-f1) / (4*Pi*f2*f1) ] ..... Henries
C1 = [ (f2-f1) / (4*Pi*f2*f1*Z0) ] ..... Farads
C2 = [ 1 / (Pi*Z0*(f2-f1) ] ..... Farads
In order to understand concepts of Microstrip filter calculator one can also refer step by step RF filter design. This design article covers microstrip based RF/Microwave Low Pass Filter design example along with Kudora's identities, Richard transformation and filter coefficients table for Chebysev LPF. Click to visit RF Filter Design Example➤