Reflection coefficient from a load impedance.

Return the reflection coefficient for a given load impedance, and characteristic impedance.

For a transmission line of characteristic impedance $$Z_0$$ terminated with load impedance $$Z_l$$, the complex reflection coefficient is given by,

$\Gamma = \frac {Z_l - Z_0}{Z_l + Z_0}$
Parameters
• z0 (number or array-like) – characteristic impedance

• zl (number or array-like) – load impedance (aka input impedance)

Returns

gamma – reflection coefficient

Return type

number or array-like