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A resonant antenna having a feed point impedance of 200 ohms is connected to a transmission line which has an impedance of 50 ohms. What will the standing wave ratio of this system be?
4:1
SWR = Load Impedance / Line Impedance (or vice-versa, whichever gives >1). SWR = 200 Ω / 50 Ω = 4. (The ratio is 4:1).
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