Cut a large double sided piece of double sided circuit board to fit the backpack. Etch the back side with a symmetric Hilbert curve split into 2 columns fed at the bottom center and the two columns attached at the top. Leave the other side as a solid ground plane... It will take some work to make a matching network, but the length of the 'curve' can easily be a half wave on 20 meters. It will be directional to your rear as you walk along.
Jim W6US ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
