Advanced Qualification · A-007 Feedlines and matching · A-007-001-010
Which type of network provides the greatest harmonic suppression?
- A Pi-L network
- B Inverse pi-network
- C Pi-network
- D L-network
Correct answer: A — Pi-L network. From the official ISED question bank, verified word for word.
Why
A Pi-L network adds an extra inductor and capacitor to the standard Pi shape, creating a steeper filter that blocks unwanted harmonic signals more effectively than simpler designs. 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.