Villard noise cancelling shortwave antenna loop demo - Don't quit SWL ov...

Not only I tried it :-) My attempt: https://www.youtube.com/watch?v=qGipnTk-fyk&feature=youtu.be&a=



 I wonder if it can also transmit. I know about high voltage between the capacitor created by overlapping foil. Would it withstand 3W of power from a CW homemade QRP transceiver on 7MHz?

Here a transmitting loop made of copper tube. https://www.youtube.com/watch?v=Cv_RnLpZ9gw
Note the use of coax to form a capacitor and tune the antenna. In fact the entire antenna can be made just from the coax.

Another solution: http://www.rfa.org/english/about-old/help/Anti-Jamming.html?searchterm:utf8:ustring=antenna