Circular Array Calculator

Circular Array helps you calculate design values for a antenna arrays project from Elements, Array Radius, Element Gain. Calculate element spacing and ideal gain for a uniformly excited circular array. 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 Elements, Array Radius, Element Gain exactly in the units shown by this circular array. Check the operating band, unit prefix, and decimal position before calculating; these are the inputs used by the formula.

• Elements.
• Array Radius — use λ.
• Element Gain — use dBi.

The results describe the calculated circular array 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 Circular Array uses Arc spacing = 2πr/N, Array gain ≈ 10 log10(N). Supply Elements, Array Radius (λ), Element Gain (dBi) in the displayed units, then use the calculated values as the first engineering target for this antenna arrays design or analysis.

This antenna arrays calculation is based on Arc spacing = 2πr/N, Array gain ≈ 10 log10(N). 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 circular array 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.