This calculator analyzes a complex impedance of the form: \[ Z = R + jX \] Where:

• R is the resistive (real) component
• X is the reactive (imaginary) component

It calculates:

• Magnitude: \( |Z| = \sqrt{R^2 + X^2} \)
• Phase Angle: \( \theta = \tan^{-1}(X / R) \)
• Polar Form: \( |Z| \angle \theta^\circ \)
• Admittance: \( Y = 1/Z = \frac{1}{|Z|} \angle -\theta \)

Useful in RF system analysis, transmission line matching, Smith chart plotting, and network design.