This calculator determines the optimal dimensions (D, X, and A) for a 90° microstrip mitered bend to minimize signal reflection and maintain consistent impedance in RF circuits.
Formulas
D = W * √2
X = W * √2 * (0.52 + 0.65 * e−1.35 * (W / h))
A = X * √2 − W
Formula Explanation
- W = Width of the microstrip line.
- h = Substrate height.
- D = Diagonal of the square miter section.
- X = Effective miter length that reduces reflection.
- A = Compensation distance for the bend geometry.
Example
Input: W = 1112 mil, h = 22 mil
Result: D = 1572.61 mil, X = 817.75 mil, A = 44.48 mil
Who uses it
Designed for RF engineers and PCB designers optimizing 90° bends in high-frequency microstrip layouts.