Antenna's name is Bryan/Brian, and he lives in Hawthorne.
He lives in Hawthorne because he generates dangerous quantities of electricity, and to leave Hawthorne has to use a walker that will drain the electricity coming from him. His room has equipment to drain the electricity and use it to power the cottage. He is the only person we've met besides Phase who likes Brass Monkey, and his brother is friends with them and got him souvenirs. The signed poster Ayla gets him for Christmas totally one-ups his brother, much to his delight.