l_stab_circle()

Returns load (output) stability circles

Syntax
y = l_stab_circle(S, numOfPts)

Arguments

Name	Description	Range	Type	Default	Required
S	scattering matrix of a 2-port network.	(-∞, ∞)	complex		yes
numOfPts	desired number of points per circle	[1, ∞)	integer	51	no

Examples

circleData = l_stab_circle(S, 51)
returns the points on the circle(s)

Defined in

$HPEESOF_DIR/expressions/ael/circle_fun.ael

See Also

l_stab_circle_center_radius(), l_stab_region(), s_stab_circle(), s_stab_region()

Notes/Equations

Used in Small-signal S-parameter simulations.
The function generates a load stability circle. The circle is defined by the loci of load-reflection coefficients where the magnitude of the source-reflection coefficient is 1.

A circle is created for each value of the swept variable(s). This measurement is supported for 2-port networks only.
Use the function _l_stab_circle_center_radius()_ to find the center and radius of the stability circle.

Use the function _l_stab_region(S)_ to determine the region of stability.