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On 08/25/2016 12:07 PM, John S wrote:
Richard is correct. The current at the feed point diminishes linearly (on a short dipole) from the feed point to the open end of the antenna as it must. Look at the current distribution using your NEC modelling program. No one said he wasn't. Did you read my last post? The uniform currents in each segment aren't the same value. Of course the end segments would be minimum. Sincerely, -- J. B. Wood e-mail: |
#2
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On 8/25/2016 11:55 AM, J.B. Wood wrote:
On 08/25/2016 12:07 PM, John S wrote: Richard is correct. The current at the feed point diminishes linearly (on a short dipole) from the feed point to the open end of the antenna as it must. Look at the current distribution using your NEC modelling program. No one said he wasn't. Did you read my last post? The uniform currents in each segment aren't the same value. Of course the end segments would be minimum. Sincerely, I did read your last post. But you also posted "Likewise we consider an "electric dipole" to be a straight conductor of very small length (compared to a wavelength) carrying uniform current." That is the one Richard and I take exception to. I think your last post explained your position better with breaking the antenna up into very small segments each with a uniform current. The currents in each segment can be considered to be uniform over that segment. However the segment currents diminish from the feed point to the open end of the element. I'm sure you know all this, but others may not. |
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