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On Apr 7, 12:42 pm, Art Unwin wrote:
On Apr 7, 12:19 pm, Richard Clark wrote: On Mon, 7 Apr 2008 09:09:04 -0700 (PDT), Art Unwin wrote: To be more specific is Wheeler refering to small FULL wave antennas or smal fractional wave antennas.? These are very different and one must be absolutely clear with what Wheeler is dealing with. My guess is that he is refering to fractional wave antennas which is very common in the communication field hi Arthru, But even more meaningful, are you speaking of large FRACTIONAL wave antennas, or small WAVE full antennas? My guess is probably both which is common in your communication. 73's Richard Clark, KB7QHC Wheeler is known for his work on small electricaly or fractional wavelength antennas. I was enquiring if the referred paper on limits were of small electrical or fractional wavelength antennas or has he broardened out to include small full wave antennas. Big difference The big difference I refer to is that a fractional wavelength antenna has limits on the "Q" factor where a full wave antenna does not have any limits on ":Q" since bandwidth is unlimited. Obviously Chu,Wheeler and others are refering to fractional wavelength antennas. where my interest is small full wave antennas. Frankly I feel that Chu and others are in error by pursuing the integration of a small electrical wave antenna in a closed arbitary border when Maxwells law,s requires equilibrium within the enclosed borders. |
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