Networks Analysis and Synthesis - Engineering

Q1:

For H(s) to be positive real, the condition Re[H(jω)] ≥ 0 for 0 ≤ ω ≤ ∞ is

A a necessary condition

B a sufficient condition

C a necessary and sufficient condition

D is not a necessary condition

ANS:A - a necessary condition

H(s) must possess two more properties if it is positive real.