As a 30-year veteran RF circuit design engineer, I'm highly skeptical of this article. But they might be on to something. Time will tell.
One of the posters at the phys.org site said, “Warning: Antenna products and research are subject to more snake-oil salesmanship than most other fields,” and I think he’s probably right. I was excited because of the thing about symmetry breaking. I thought some new physics had been discovered. Should’ve known better.