Unit 1
Introduction to planar transmission lines: stripline – Microstrip line – Shielded microstripline – Impedance – Effect of thickness – Attenuation – Applications. Distributed and lumped elements – Capacitors – Inductors – Resistors – Terminations – Attenuators – Resonators. Directional couplers: Rring directional couplers – Branch-line directional couplers.