There are connectors-antennish such a concept as the "elementary vibrator". Thus e. A simple piece of wire that emits waves. Also, antennas can be caught not only with the help of iron sticks, but also with the help of gaps in the iron pipe.
So here. Somewhere from the province came to us in the university to protect the disser one aunt. You can imagine what happened to the professors... Title of the work: "Excitation of an endless narrow gap by a thick end-length vibrator")))