Before revision: A passive lumped low-pass prototype filter of fifth order and the T-topology might have the impedance : +1jΩ -0.64jΩ +2jΩ -0.64jΩ +1jΩ (exemplary) To convert them to 50 Ohm multiply the given values by 50.
After revision: A passive lumped low-pass prototype filter of fifth order and the T-topology might have the reactance : +1jΩ -0.64jΩ +2jΩ -0.64jΩ +1jΩ (exemplary) To convert them to 50 Ohm multiply the given values by 50.