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Old September 8th 03, 06:44 PM
JJ
 
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Len Over 21 wrote:



Incorrect. The word "dipole" refers to anything with two elements and a
polarity. [a "monopole" is a single element with no polarity]

A dipole ANTENNA refers to a wire type having two elements of wires,
balanced-fed from the center with RF voltage in opposition.

The length of this dipole antenna may be ANY length, from near-infinitesimal
(fractional wavelength) to many wavelengths.

The radiation pattern of the dipole antenna will vary based on many factors:
length relative to wavelength, distance above ground or other imperfect
conductor being the two most affecting patterns.


Len is correct, dipole simply means two separate elements (di
means two). A dipole of a certain length will be a half
wavelength at xx frequency, a quarter wavelength at yy
frequency and a full wavelength at zz frequency and so on.