Advanced Qualification · A-007 Feedlines and matching · A-007-008-008
What is the term used for an equivalent resistance which would dissipate the same amount of energy as that radiated from an antenna?
- Aj factor
- BAntenna resistance
- CK factor
- DRadiation resistance
Correct answer: D — Radiation resistance. From the official ISED question bank, verified word for word.
Why
Radiation resistance is the right term because it represents a notional resistance value that, if placed in a circuit, would waste exactly as much power as the antenna actually sends out as radio waves. The full explanation — and one for every question — is in Pro.
Practise this section
Feedlines and matching is section A-007 of the Advanced exam: Feedlines and matching at the advanced level: transmission line theory, impedance transformation, stubs and matching networks.
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