I had a hard time figuring out what about this design was origami-based until I got to the bottom of the article, and now it makes sense. I was expecting either a modular origami design or perhaps a more basic base shape of some sort, but they have used essentially a full sheet geometric fold basis for it. They also called it a waterbomb, but I'm not sure if that really applies here? Either way, I found it interesting.
https://www.allaboutcircuits.com/news/researchers-tap-origami-as-basis-for-reconfigurable-antenna-design/
