ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,270, issued on Oct. 7, was assigned to Electronics and Telecommunications Research Institute (Daejeon, South Korea).

"Broadband feed network device for realizing low axial ratio characteristics and a planar array antenna using the same" was invented by Soon Young Eom (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A feed network device, which is electrically connected to unit radiating elements for circular polarization, may comprise a phase offset compensation circuit configured to correct a phase dispersion error according to a change in frequency so that four quarter arrays obtained by vertically and horizontally dividing a pl...