Posted on Thursday, May 20, 2010 • Category: Antennas
A modified version of the simple dipole is the folded dipole. It has two half-wave conductors joined at the ends and one conductor is split at the half-way point where the feeder is attached.
If the conductor diameters are the same, the feedpoint impedance of the folded dipole will be four times that of a standard dipole, i.e. 300 ohm.
The height above the ground
The height of an antenna above the ground, and the nature of the ground itself, has a considerable effect on the performance of an antenna.and its angle of radiation. See PROPAGATION
A dipole antenna can be arranged to operate on several bands using other methods. One way is to install "traps" in each leg.
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