US Patent Issued to Outdoor Wireless Networks on May 6 for "Antenna calibration boards having non-uniform coupler sections" (Indian, Chinese Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,294,141, issued on May 6, was assigned to Outdoor Wireless Networks LLC (Claremont, N.C.).

"Antenna calibration boards having non-uniform coupler sections" was invented by Lakshminarayana Pollayi (Srikakulam, India), Kumara Swamy Kasani (Godavarikhani, India) and Ligang Wu (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Base station antenna calibration boards are provided. A base station antenna calibration board includes directional couplers and radio frequency (RF) transmission lines that are coupled to the directional couplers, respectively. Moreover, a first pair of the directional couplers has a coupler section that is between and cou...