5 Essential Factors that Influence the Impedance of Dipole Antennas
The impedance of dipole antennas is influenced by length (72Ω at λ/2, dropping if shorter), diameter (thicker wires reduce impedance), height above ground (≥λ/2 for 50-75Ω), nearby objects (metal can shift impedance ±20Ω), and feed method (balun usage affects balance). Optimal tuning requires VSWR <1.5:1, achieved by adjusting length (±5% for 50Ω match) and using […]
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