Advanced Qualification · A-007 Feedlines and matching · A-007-008-008
Quel terme est employé pour déterminer la résistance équivalente qui dissiperait la même énergie que celle rayonnée par l'antenne?
- ALa résistance d'antenne
- BLe facteur "K"
- CLa résistance de rayonnement
- DLe facteur "j"
Correct answer: C — La résistance de rayonnement. Question tirée de la banque officielle d'ISDE.
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.
Drill A-007 — free, no account