ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,662, issued on Sept. 15, was assigned to Electronics and Telecommunications Research Institute (Daejeon, South Korea).
"Omnidirectional antenna" was invented by Jong Ho Kim (Daejeon, South Korea) and Youngsu Kim (Seongnam, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An omnidirectional antenna is provided. The omnidirectional antenna includes a waveguide configured to transmit a fed signal, a microstrip line configured to radiate the fed signal transmitted from the waveguide, and a radiation guide configured to guide the signal radiated from the microstrip line to omnidirectionally radiate the signal, wherein a waveguide cavity of the...