ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,109, issued on July 21, was assigned to RichWave Technology Corp. (Taipei City, Taiwan).
"Coupler structure and related radio frequency circuit" was invented by Chia-Jung Yeh (Taipei City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A coupler structure includes a main signal line, a first coupling line, a second coupling line and a spacer element. The main signal line is located on a first plane, the first coupling line is located on a second plane, and the second coupling line is located on a third plane, wherein the second plane and the third plane are both in parallel with the first plane, and the second plane and the third plane are bo...