Short whip antenna designer.

Short whip antenna dimension calculator

Back to Antenna calculator overview.

On-line antenna designer. Calculate the required dimensions for a short whip antenna construction for any given frequency.

Enter the required frequency in MHz and the antenna designer will calculate the dimensions of the elements and values of the required components for resonance as shown below.

Enter Frequency (MHz)

Antenna element diameter

B in millimeters
(the thickness of the whip element)

Length of the antenna element

A in millimeters
(the length of the whip element < ¼λ)

The short whip antenna consists of single element (monopole) that is less than a 1/4 wave length of the desired resonant frequency. Antennas that are shorter than the required frequency are capacitive of nature and thus need additional inductance to achieve resonance.

For all intents and purposes, this calculator will also deal with whip elements that are longer than required frequencies, however as these become inductive the capacitive element will need to be added at the base for resonance compensation.

Frequency calculations are based on radio waves traveling at the speed of light 299 792 458 meters per second.

Calculated results

C: Antenna capacitance ? pF

L: Required inductance ? nH

Radiation resistance (approx.) ? ohms

The reason this short whip antenna resonance calculator was constructed is for the calculation of inductance coils for the smart falconry telemetry transceivers. The goal is to make short light weight as efficient as possible flexible antennas for transmitting and receiving telemetry from small transceivers attached to birds of prey, for the purpose of tracking them on the wing.

Once you have the required inductance, the next question is: How do I make an inductor with this value?

Use the Air Core Inductor Calculator to calculate the coil requirements for the needed inductance for your antenna design.

Short Whip Antenna Design