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Length
Feb 4, 2005 10:06:59 GMT
Post by Radio Administrator on Feb 4, 2005 10:06:59 GMT
For an antenna to efficiently radiate radio waves, it should be the correct length for the frequency being used. This length is worked out by dividing the speed of light by the frequency being used. If it is to cover a band of frequencies, you take the centre frequency (add top and bottom frequencies, and divide by two). This will give you the wavelength, and the antenna is usually half of this wavelength - after considering other factors, such as width (below), which affect the actual length required.
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