Awesome links! Thanks Bill!
-Don
On 3/20/2021 6:06 AM, William Beaty wrote:
On Thu, 18 Mar 2021, Jürg Wyttenbach wrote:
In the far field the toroidal field components can be
(most of the time) neglected. Most of the literature about pure toroidal
fields or scalar EM waves is classified. But just google some terms I
gave.
The Corum bros wrote the following in 2008, caduceus toroid antennas:
http://www.tuks.nl/pdf/Reference_Material/Corum/Toroidal%20helix%20antenna.pdf
George Hathaway had brief funding to work on toroid antenna
experiments in
2011 (I don't know if this is paywalled PDF:)
https://www.researchgate.net/publication/251709920_Electromagnetic_Radiation_Experiments_with_Transmitting_Contra-Wound_Toroidal_Coils
Also the infamous "missing" Corum rotary-fields paper from the 1994
proceedings of Tesla Symposium is found here:
https://1lib.us/book/3499511/84d6bd?regionChanged=&redirect=236683546
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William J. Beaty SCIENCE HOBBYIST website
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