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Just for clarification...

My vector models are based on the dimensions that HomerBB gave me from his homemade version. I am not sure how close those specs are to the production version of the Vector antenna that I believe Marconi said he used. While not perfect, the HomerBB version of my models is one of the better set of dimensions I have used for said antenna. The only way from that model to get a significant increase in gain is to use a larger ring diameter, which most people don't tend to use.

My model above also includes a gamma match and is fully tuned. In my experience with modeling, adding such a matching network *can* change, at least to some extent, the current distribution on the model itself.

I'm not sure if the difference in dimensions or the matching system is the cause of the differences in our results. I would lean towards the potential difference in dimensions that we used being the largest cause of the differences we see as typically, when we model similar antennas we get fairly similar results.

The DB

<blockquote data-quote="The DB" data-source="post: 611019" data-attributes="member: 21346">Just for clarification...My vector models are based on the dimensions that HomerBB gave me from his homemade version.&nbsp; I am not sure how close those specs are to the production version of the Vector antenna that I believe Marconi said he used.&nbsp; While not perfect, the HomerBB version of my models is one of the better set of dimensions I have used for said antenna.&nbsp; The only way from that model to get a significant increase in gain is to use a larger ring diameter, which most people don&#039;t tend to use. My model above also includes a gamma match and is fully tuned.&nbsp; In my experience with modeling, adding such a matching network *can* change, at least to some extent, the current distribution on the model itself.I&#039;m not sure if the difference in dimensions or the matching system is the cause of the differences in our results.&nbsp; I would lean towards the potential difference in dimensions that we used being the largest cause of the differences we see as typically, when we model similar antennas we get fairly similar results.<a href="http://hittman.us" target="_blank">The DB</a></blockquote>

[QUOTE="The DB, post: 611019, member: 21346"] Just for clarification... My vector models are based on the dimensions that HomerBB gave me from his homemade version. I am not sure how close those specs are to the production version of the Vector antenna that I believe Marconi said he used. While not perfect, the HomerBB version of my models is one of the better set of dimensions I have used for said antenna. The only way from that model to get a significant increase in gain is to use a larger ring diameter, which most people don't tend to use. My model above also includes a gamma match and is fully tuned. In my experience with modeling, adding such a matching network *can* change, at least to some extent, the current distribution on the model itself. I'm not sure if the difference in dimensions or the matching system is the cause of the differences in our results. I would lean towards the potential difference in dimensions that we used being the largest cause of the differences we see as typically, when we model similar antennas we get fairly similar results. [COLOR=#000000][URL='http://hittman.us']The DB[/URL][/COLOR] [/QUOTE]

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