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I didn't see any models, I saw graphs that plotted the radiation resistance in relation to the length up to a wavelength over a theoretical "perfect" ground plane. I've seen these graphs from multiple sources, but not the math or whatever the method that was used to determine the information in the graphs.

I'm not saying your right or wrong, but every source I have thus far looked through and that I remember reading from before agree that a 0.25 wavelength antenna over perfect ground presents 36 ohms of radiation resistance, give or take an ohm, at resonance. As I mentioned earlier this is often presented as a baseline for other charts that vary the length, width, height, ect. of the antenna. Further, the same thing has been stated on this and other forums by many people as fact.

The DB

<blockquote data-quote="The DB" data-source="post: 441133" data-attributes="member: 21346">I didn&#039;t see any models, I saw graphs that plotted the radiation resistance in relation to the length up to a wavelength over a theoretical &quot;perfect&quot; ground plane.&nbsp; I&#039;ve seen these graphs from multiple sources, but not the math or whatever the method that was used to determine the information in the graphs.I&#039;m not saying your right or wrong, but every source I have thus far looked through and that I remember reading from before agree that a 0.25 wavelength antenna over perfect ground presents 36 ohms of radiation resistance, give or take an ohm, at resonance.&nbsp; As I mentioned earlier this is often presented as a baseline for other charts that vary the length, width, height, ect. of the antenna.&nbsp; Further, the same thing has been stated on this and other forums by many people as fact.<a href="http://hittman.us" target="_blank">The DB</a></blockquote>

[QUOTE="The DB, post: 441133, member: 21346"] I didn't see any models, I saw graphs that plotted the radiation resistance in relation to the length up to a wavelength over a theoretical "perfect" ground plane. I've seen these graphs from multiple sources, but not the math or whatever the method that was used to determine the information in the graphs. I'm not saying your right or wrong, but every source I have thus far looked through and that I remember reading from before agree that a 0.25 wavelength antenna over perfect ground presents 36 ohms of radiation resistance, give or take an ohm, at resonance. As I mentioned earlier this is often presented as a baseline for other charts that vary the length, width, height, ect. of the antenna. Further, the same thing has been stated on this and other forums by many people as fact. [URL="http://hittman.us"][COLOR="Black"]The DB[/COLOR][/URL] [/QUOTE]

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