Advanced Qualification · A-007 Feedlines and matching · A-007-001-005
What is a pi-network?
- A A network consisting of one inductor and two capacitors or two inductors and one capacitor
- B An antenna matching network that is isolated from ground
- C A network consisting of four inductors or four capacitors
- D A power incidence network
Correct answer: A — A network consisting of one inductor and two capacitors or two inductors and one capacitor. From the official ISED question bank, verified word for word.
Why
A pi-network gets its name because the three components look like the Greek letter pi when drawn on paper: two capacitors with an inductor between them, or two inductors with a capacitor in the middle. The full explanation — and one for every question — is in Pro.
Practise this section
Feedlines and matching at the advanced level: transmission line theory, impedance transformation, stubs and matching networks.