Whip Antenna Calculator: Design & Parameters

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This Whip Antenna calculator calculates various parameters of a whip antenna, also known as a monopole antenna. It provides calculations for various aspects of the antenna.

You’ve probably seen long, straight rods on cars – those are whip antennas. They typically consist of a flexible wire, with the bottom part connected to a radio receiver or transmitter. This design makes them resistant to breakage during movement, hence the name “whip.”

vertical whip antenna

Figure 1 depicts a whip antenna.

Often, whip antennas with a quarter wavelength are used. They are fundamentally monopole antennas used in HF, VHF, and UHF frequency bands.

Typical applications of whip antennas include:

  • Cell phones
  • Walkie-Talkies
  • Cordless phones
  • FM Radio
  • WiFi devices
  • GPS devices

Whip antennas have an omni-directional radiation pattern because they are monopole antennas. As a result, they are often referred to as monopole antennas.

Whip Antenna Calculator | Monopole Antenna Calculator

Inputs

Outputs

EXAMPLE:

INPUTS:

  • Frequency = 900 MHz
  • Length = 12 inches
  • Diameter = 0.5 inches

OUTPUTS:

  • Capacitance = -1.8 pF
  • Inductance = -17.28
  • Quarter Wavelength = 0.0833 meters
  • Antenna Length (%) = 365.75
  • Radiation Resistance = 347.5 Ohms

Whip Antenna Formula

The following formulas/equations are used in the Whip Antenna Calculator:

whip antenna formula

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