RFDifferential Microstrip Impedance Calculator
rf microwave
impedance
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microstrip
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This page describes a Differential Microstrip Impedance Calculator and the formulas or equations used within it.
Figure 1: Differential Microstrip Line
The figure above (Figure 1) illustrates a differential microstrip line configuration.
For more comprehensive information, refer to articles on the types of microstrip lines and the fundamentals of microstrip lines.
Example Calculation:
INPUTS:
- Er (Dielectric Constant) = 4.5
- w (Trace Width) = 5.2 mm
- d (Spacing Between Traces) = 5.2 mm
- t (Trace Thickness) = 1.5 mm
- h (Substrate Height) = 4.6 mm
OUTPUT:
- Characteristic Impedance = 56.58 Ohms
- Differential Impedance = 94.81 Ohms
(1 mm = 39.37 mils)
mm to mils converter
INPUT:
- mm = 0.5
OUTPUT:
- mils = 19.685
Differential Microstrip Impedance Formula or Equation
The following equation or formula is used for the Differential Microstrip Impedance Calculator:
