ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,838, issued on Oct. 14, was assigned to Outdoor Wireless Networks LLC (Richardson, Texas).

"Radio frequency device, multi-band phase shifter assembly, antenna system, and base station antenna" was invented by Ting Zhang (Suzhou, China), Chen Chen (Suzhou, China) and Fangwen Wan (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A radio frequency device, multi-band phase shifter assembly, an antenna system and a base station antenna in which metasurface decoupling elements between transmission lines are provided. For example, a radio frequency device may include: a substrate; a first transmission line printed on a first major surface of th...