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Just a correction, the colors are only showing magnitude, the radials in that picture are in phase with the vertical element. Here is that antenna again, shown left is currents, right is phase.

As we can see the currents flowing in the radials and the simulated mast are very small compared to the currents in the antenna itself.

On the phase picture above we can see a phase shift in the antenna near where the radials connect. This antenna is on the cusp of flipping the phase of the upper 1/2 wavelength radiator, and it wouldn't take much more length to cause that to happen, at which point the radials fight against the low angle radiation and changing the primary lobe to a lobe at near 45 degrees.

The DB

<blockquote data-quote="The DB" data-source="post: 461046" data-attributes="member: 21346">Just a correction, the colors are only showing magnitude, the radials in that picture are in phase with the vertical element.&nbsp; Here is that antenna again, shown left is currents, right is phase.<img src="http://hittman.us/pictures/1-24-14/45rcurrents2.jpg" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" /> <img src="http://hittman.us/pictures/1-24-14/45rphase2.jpg" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" />As we can see the currents flowing in the radials and the simulated mast are very small compared to the currents in the antenna itself.On the phase picture above we can see a phase shift in the antenna near where the radials connect.&nbsp; This antenna is on the cusp of flipping the phase of the upper 1/2 wavelength radiator, and it wouldn&#039;t take much more length to cause that to happen, at which point the radials fight against the low angle radiation and changing the primary lobe to a lobe at near 45 degrees.<a href="http://hittman.us" target="_blank">The DB</a></blockquote>

[QUOTE="The DB, post: 461046, member: 21346"] Just a correction, the colors are only showing magnitude, the radials in that picture are in phase with the vertical element. Here is that antenna again, shown left is currents, right is phase. [IMG]http://hittman.us/pictures/1-24-14/45rcurrents2.jpg[/IMG] [IMG]http://hittman.us/pictures/1-24-14/45rphase2.jpg[/IMG] As we can see the currents flowing in the radials and the simulated mast are very small compared to the currents in the antenna itself. On the phase picture above we can see a phase shift in the antenna near where the radials connect. This antenna is on the cusp of flipping the phase of the upper 1/2 wavelength radiator, and it wouldn't take much more length to cause that to happen, at which point the radials fight against the low angle radiation and changing the primary lobe to a lobe at near 45 degrees. [URL="http://hittman.us"][COLOR="Black"]The DB[/COLOR][/URL] [/QUOTE]

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