Enter the frequency to be used by the antenna into the calculator to determine the total length of the dipole and the length of each side.
Dipole Antenna Formula
The following formula is used to calculate the dipole antenna length.
L = 468 / f
- Where L is the length (feet)
- f is the frequency in MHz
Length (feet) refers to the measurement of the distance between two points using the unit of feet.
Frequency in MHz refers to the number of cycles or oscillations per second in a radio wave or electromagnetic signal, where 1 MHz equals one million cycles per second.
Dipole Antenna Definition
A dipole antenna is a simple wire antenna that is widely used for communication purposes. It consists of two conductive elements, typically in the shape of straight rods or wires, aligned in parallel and separated by a small gap. The length of the elements is typically half the wavelength of the radio wave being transmitted or received.
Dipole antennas are important because they are efficient in transmitting and receiving electromagnetic waves. They are beneficial for medium-range communication applications, such as radio and television broadcasting, Wi-Fi networks, and amateur radio stations. Dipole antennas are relatively easy to construct, cost-effective, and provide a balanced radiation pattern, making them a popular choice in various applications.
Dipole Antenna Example
How to calculate a dipole antenna length
- First, determine the frequency to be used.
Determine the frequency in MHz
- Calculate the total length
Calculate the total length of the dipole using the formula above.
- Calculate the length of each element
Divide the value from step 2 by 2 to calculate the length of each side.
FAQ
A dipole antenna is a type of antenna with two equal-length elements on each side of the antenna.
The height of the antenna can be any value both the length of the dipoles are specific to the frequency.