This calculator determines the optimal dimensions (D, X, A) of a 90° elbow in a microstrip line in order to reduce signal reflections and maintain characteristic impedance. It helps design RF circuits with better performance and improved signal integrity.
Formulas
D = W × √2
X = W × √2 × (0.52 + 0.65 × e −1.35 × (W/h) )
A = X × √2 − W
Explanation of formulas
These equations make it possible to calculate the parameters of the attenuated elbow as a function of the width of the line (W) and the height of the substrate (h). The exponential term adjusts the compensation length (A) to minimize the impedance discontinuity at the turn, ensuring a smoother transition and reducing signal reflection.
Uses of the calculator
- Design of 90° RF and microwave circuits without matching loss.
- Reduction of reflections and improvement of signal transmission.
- Optimization of track geometry on high frequency PCB.
- Essential tool for RF PCB design engineers.