1 2 Wave Dipole Calculator

A 1 2 wavelength dipole is made up of two pieces of wire each 1 4 wavelength long.

1 2 wave dipole calculator.

The half wave dipole is very simple to construct. Length feet 468 frequency mhz. This calculator uses a k multiplying factor value of 975 to adjust for the effect of antenna wire diameter on length which is applied to the free space half wavelength equation. Just grab a calculator and perform the following bit of division.

There are usually four radials three being a minimum but you could use up to six. This could be 50 ohm types such as rg58 rg8x rg8 rg213 or 75 ohm type such as rg11 rg59 rg6 or even 75 ohm twin lead. 1 2 wave dipole calculator. Place a 1 1 balun on the antenna end of the feedline.

The larger the wire the wider the bandwidth. The inverted vee antenna legs will be longer by 2 6 from those of the horizontal antenna depending on the angle. To make it even easier you can calculate the lengths of wire required to construct a 1 2 wave dipole using this page. Calculating the lengths of the 1 2 wavelength wires is simple.

Enter the frequency in mhz. The wire size can range from 16 awg to 12 awg. The distance between one point to another adjacent point in a wave is known as the wavelength. Use 75 or 50 ohm cable to feed the centre of the dipole.

Even zip cord such as what is used for lamp cords will perform quite well. The radiating element is a quarter wave λ 4 and the radials are 12 longer. The measurements below are for building a simple dipole antenna. The dipole antenna is probably the easiest to make.

All you need is 2 pieces of wire 3 insulators and a suitable feed line. This calculator can be used to design a quarter wave ground plane antenna with radials. For a dipole or inverted vee antenna. It is inversely proportional to the frequency which means the wave with higher frequency will have shorter wavelength.

This calculator will help you to calculate the different wavelength of antennas based on the frequency. This works very well with 18 to 12 wire sizes. The antenna is designed to be fed with 50 or 75 ohm coax cable of most any length with a balun.