From IEEE Standard Definitions of Terms for Antennas:
"2.102 dipole antenna. Any one of a class of antennas producing a
radiation pattern approximating that of an
elementary electric dipole. Syn: doublet antenna.
NOTE---Common usage considers the dipole antenna to be a metal radiating
structure that supports a line current distribution
similar to that of a thin straight wire so energized that the current
has a node only at each end."
Steve G3TXQ
On 16/09/2014 05:43, Ken Brown wrote:
Any center fed straight wire is a dipole, regardless of how it's
length compares the the wavelength you are using it on. If I build a
dipole to be a half wavelength on 7 MHz, and then use it on 10.1 MHz
it is still a dipole, just not a half wave dipole.
I find it interesting to examine the dipole antenna. By definition it
is a wire length being equal to 1/2 the wavelength of the frequency.
The name comes from two terms "DI" meaning two and "POLE" meaning
electrical terminal having two distinct regions of electrical polarity.
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