Folded Dipole Antenna Calculator

Folded Dipole Antenna helps you calculate design values for a dipole antennas project from Frequency, Velocity Factor. Calculate dimensions, feed impedance, gain, and matching requirements for a standard folded dipole antenna. Use the result to make an informed first design decision before choosing hardware, setting dimensions, or evaluating the RF system in its final environment.

Enter Frequency, Velocity Factor exactly in the units shown by this folded dipole antenna. Check the operating band, unit prefix, and decimal position before calculating; these are the inputs used by the formula.

• Frequency — use MHz.
• Velocity Factor.

The results describe the calculated folded dipole antenna values for the inputs you entered. Check each value against the available space, selected components, feed system, and operating conditions before making a final design decision.

The Folded Dipole Antenna uses Total Length ≈ (143/f) × VF, Feed Impedance ≈ 300 Ω. Supply Frequency (MHz), Velocity Factor in the displayed units, then use the calculated values as the first engineering target for this dipole antennas design or analysis.

This dipole antennas calculation is based on Total Length ≈ (143/f) × VF, Feed Impedance ≈ 300 Ω. Real-world accuracy depends on factors such as material properties, losses, mounting, nearby conductors, ground interaction, feed-line effects, and construction tolerance. Confirm the final system with measurement or simulation.

Apply the folded dipole antenna result as an initial target, then validate it in the intended installation. Keep the physical layout and feed arrangement consistent while testing, change one parameter at a time, and record the measured outcome before making another adjustment.