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#241
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#242
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#243
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#244
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Well Cecil what ever you do do not use the word efficiency,
just use the ratio between X and Y fully stating what X is and Y is. This way the word efficiency need not be used for a baseless augument. I am very pleased by the way, that you are not attempting to explain anything new but just educating the masses on what is already known, and forgotton by the way, and re presenting the facts of nature in a way everybody can understand that leaves no room for argument. If you do find something new present it in such a way that the Gurus can respond in such a way that it is their idea or they knew it all along but have just been to busy to write it up. Send your paper again with the footnote that their previous response and leadership is what you built upon and which you need further assistance from them. It should then get printed in a couple of months and your name printed as a foot note. I saw a aeroplane crash data box a short time ago only to find that is not a black "box" as previously stated. Ever thought of designing a better black "box" to put it in and then become famous in your own mind? The previous one made of cardboard just didn't work out when things became all wet. Best regards Art P.S. I misquoted the price of AO pro, the program actually costs $600 or X andW5DXP wrote in message ... Art Unwin KB9MZ wrote: Roy, the die was cast years ago when anything "new" was trashed without a hearing. I now accept that all is now known about antennas except the really deep things that Cecil is so bravely pushing on with where I failed. One slight correction, Art. Because of the similarity between light and radiated EM waves, most things about antennas are known, at least to the limit of the models to handle reality. However, it appears to me that some things have been overlooked when the coherent EM waves are confined to a one-dimensional transmission line. Those things that have been overlooked are what I am pursuing and as far as I can determine, they happen only inside a transmission line or at a thin-film non-reflective surface using coherent light waves. That's what makes it special. That is not to conclude that you haven't discovered something special, just that my focus is Z0-match points inside transmission lines and non-glare thin-film coatings involving orthogonal coherent light. |
#245
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'corse, should have attached the "smiley face" (my cynisicasm is/was on
:) !! ) Jim "Roy Lewallen" wrote in message ... The answer is no. You should be able to figure out the reason why by reading the previous postings in this thread. Roy Lewallen, W7EL wrote: Just playing devels advocate here, but, as you state "If you put X watts into one antenna and extract Y watts from an antenna coupled to it, and measure the efficiency of the "transformer" the same way as you did the conventional transformer, you'll find it has lousy efficiency.", does that refer to the 377 ohms (or so) free space coupling impedence, or could that effeciency be improved by having the antenna's matched radiation resistance approach that 377 ohms? (I.E. max transfer of power is at Z0 (in) matches Z0(out)! or, is this academic for this? Perhaps, better for Dr. Shorza Gitchigoumi of CQ fame, or Larson E. Rapp of ARRL fame (both with bad habit of only presenting articles in the 4th month of the year in their respective publications) ! But, I'd thought I had better ask! Jim NN7K "Roy Lewallen" wrote in message ... I hope you'll pardon me for amplifying this a little. If you put X watts into the primary of a transformer and extract Y watts from the secondary, the efficiency is Y/X by definition. If you put X watts into one antenna and extract Y watts from an antenna coupled to it, and measure the efficiency of the "transformer" the same way as you did the conventional transformer, you'll find it has lousy efficiency. Why? Because a goodly fraction of the power you applied to the "primary" antenna never gets to the "secondary" antenna because it's radiated instead. As far as the "secondary" is concerned, it might as well have been converted to heat. If you look at the impedance of the "primary" antenna, you'll find an excess of resistance -- just enough, in fact, to account for the "lost" (radiated) power. This isn't a statement about how well coupled antennas function as antennas, whose purpose is to radiate after all. It's a statement about how well they function as a transformer. Poorly. Roy Lewallen, W7EL |
#247
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#248
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#249
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#250
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![]() On 28 Jul 2003 17:51:18 -0700, (Mark Keith) wrote: If you think it's a great idea, use it. The end performance will tell the true story. As an example, note the "EH" guy. Personally, I think he's on a misguided turd hunt, but at least he's got the nads to actually build the crazy looking things. Hi Mark, This kinda sounds like the plot to "Parsival," the world's longest Opera by Wagner. I would expand further, but me and my buddies are out the door to escape the heat at the mall's cineplex to see T³. "I'll be back...." 73's Richard Clark, KB7QHC "Parsival" a misguided turd hunt? That's a good way to put it, though crude. You're going to get emails from the music appreciation community, Richard. 73, Tom Donaly, KA6RUH |
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Conservation of Energy | Antenna |