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.”
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
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: