Abstract: This letter presents a different dual-polarized filtering antenna design method by inserting a novel crossover ring filter into a conventional balun-feed dipole antenna structure. The ...

you can use any type of wire or wire size you have. Smaller diameter wires are easier to handle, but they are less durable than larger wires. The number of crystal beads added as you like. This video ...

Colorful little paper clips are the easiest to find. So in this video I will try 3 simple ring designs with this popular ...