"Szczepan Bialek" wrote in message
.. .


"Wayne" napisal w wiadomosci
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"Szczepan Bialek" wrote in message
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On Friday, April 26, 2013 12:38:06 PM UTC-5, Irv Finkleman wrote:
snip

Maybe SB can explain the difference between a monopole with a single
ungrounded radial, and a dipole.

Each radial, grounded or not (but connected to the shield of the coax),
is the ground.
The Earth, the Moon, a satelite and each piece of conductor is ground for
antennas. Radial is one of them.
Ground must be adequate to kW.

What if the single ungrounded quarter wave radial is in line with the
quarter wave radiator?
Is it still a monopole?

# Of course.

Wow...you gave a lot to digest.

Just to understand the discussion, let's address the monopole with one
radial.

Assuming the monopole is 1/4 wave long, and has a 1/4 wave long radial.
The radial is in line with the monopole. Everything is ungrounded.

# The radial connected with the shield of the coax is the ground.


How does that configuration of a monopole with one radial differ from a
dipole?

So a half wave wire broken at the center is a monopole with a single radial
if it is fed directly with coax?
And it is a dipole if it has a balanced feed?

What if the coax feedline has a quarter wave sleeve, open at the antenna but
connected to the coax at the other end?
Is it a monopole or a dipole?