Wire Antenna Calculator

Wire Antenna helps you calculate design values for a dipole antennas project from Resonant Frequency, Wire Diameter, Feedline Impedance. Calculate the dimensions and characteristics of an ideal half-wave wire 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 Resonant Frequency, Wire Diameter, Feedline Impedance exactly in the units shown by this wire antenna. Check the operating band, unit prefix, and decimal position before calculating; these are the inputs used by the formula.

• Resonant Frequency — use MHz.
• Wire Diameter — use mm.
• Feedline Impedance — use Ω.

The results describe the calculated wire 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 Wire Antenna uses Total Length (m) = 143 / Frequency (MHz). Supply Resonant Frequency (MHz), Wire Diameter (mm), Feedline Impedance (Ω) 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 (m) = 143 / Frequency (MHz). 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 wire 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.