Properties of the Cascade lead compensator As, the angle contributed by the compensator to some arbitrary point s, at on the s-plane is illustrated in Figure 1 Im s-plane Re 2022-2-3 62022-2-3 6 Properties of the Cascade Lead Compensator ¨ As , the angle contributed by the compensator to some arbitrary point s1 at on the s-plane is illustrated in Figure 1. s-plane z 0 s 1 p0 p z Im Re