Ed WA3WSJ has an interesting site to me. I don’t know how I found it initially, probably searching on antennas, but I do return it every once in a while to check out his activities. This guy is an avid hiker with his dog Trevor (pictured) and has developed some interesting antennas. I have links to a couple, not sure if these are still available on his site or not, the bead wire antenna and the tri-band dipole antenna. Check out his website, I will add a link to my list on the side.