I currently run a fan dipole for 80, 40, and 20 meters. The elements are running in different directions as viewed from above. Just imagine looking from above and seeing elements going off at the 1, 3, 5, 7, 9, and 11 o'clock positions. I am wanting to do a bit better on 20 meters being the leg angles are rather steep. My question is.....could I add another half wave of wire to the 2 ends of that dipole and form a full wave 20 meter loop under the feedpoint? Feedpoint is up about 40 feet. It seems like the same principles of how the fan dipole works would also allow this configuration to work. RF would flow to the resonate portions of the antenna on each band with the loop not effecting the 40 and 80 meter dipoles. I would appreciate any insight. Thanks.