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I think there will have to be an acceptance of this out of phase radiation being represented in this way (despite it being part of one and the same sine wave). It seems to be just how modelling software does it. Here is a 5/8 wave animated GIF showing the out of phase portion of a 5/8 wave. Although I am still not entirely sure why the currents are so different for a EF FW vs the FW dipole other than accepting as a fact that with a centre feed, currents are always in phase.

Keep your eye on the red parts developing that is easiest. The only other way I can view this is that the main current centre develops 2 x 180 degree arcs thus producing a 360 degree cycle of RF. In addition (or in fact subtraction) the lower developing current centre colour coding suggests it is a developing opposition despite its relatively small size.

Seemingly for a EFFW this is much more serious subtraction and therefore causes great attenuation at some angles. Whereas the principle of operation for a 5/8 is to flatten the pattern in conjunction with far field ground reflections. Feel free to pick holes, these are just entertaining musings and ways of trying to take it in for myself, rather than presentation of facts.

<blockquote data-quote="TheBlaster" data-source="post: 777029" data-attributes="member: 58745">I think there will have to be an acceptance of this out of phase radiation being represented in this way (despite it being part of one and the same sine wave). It seems to be just how modelling software does it. Here is a 5/8 wave animated GIF showing the out of phase portion of a 5/8 wave. Although I am still not entirely sure why the currents are so different for a EF FW vs the FW dipole other than accepting as a fact that with a centre feed, currents are always in phase.Keep your eye on the red parts developing that is easiest. The only other way I can view this is that the main current centre develops 2 x 180 degree arcs thus producing a 360 degree cycle of RF. In addition (or in fact subtraction) the lower developing current centre colour coding suggests it is a developing opposition despite its relatively small size.Seemingly for a EFFW this is much more serious subtraction and therefore causes great attenuation at some angles. Whereas the principle of operation for a 5/8 is to flatten the pattern in conjunction with far field ground reflections. Feel free to pick holes, these are just entertaining musings and ways of trying to take it in for myself, rather than presentation of facts.<img src="http://www.gain-master.it/images/fig1.gif" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" /></blockquote>

[QUOTE="TheBlaster, post: 777029, member: 58745"] I think there will have to be an acceptance of this out of phase radiation being represented in this way (despite it being part of one and the same sine wave). It seems to be just how modelling software does it. Here is a 5/8 wave animated GIF showing the out of phase portion of a 5/8 wave. Although I am still not entirely sure why the currents are so different for a EF FW vs the FW dipole other than accepting as a fact that with a centre feed, currents are always in phase. Keep your eye on the red parts developing that is easiest. The only other way I can view this is that the main current centre develops 2 x 180 degree arcs thus producing a 360 degree cycle of RF. In addition (or in fact subtraction) the lower developing current centre colour coding suggests it is a developing opposition despite its relatively small size. Seemingly for a EFFW this is much more serious subtraction and therefore causes great attenuation at some angles. Whereas the principle of operation for a 5/8 is to flatten the pattern in conjunction with far field ground reflections. Feel free to pick holes, these are just entertaining musings and ways of trying to take it in for myself, rather than presentation of facts. [IMG]http://www.gain-master.it/images/fig1.gif[/IMG] [/QUOTE]

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