ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,557, issued on Jan. 27, was assigned to TEXAS INSTRUMENTS Inc. (Dallas).
"Differential electrical balance duplexers" was invented by Sachin Kalia (Dallas), Tolga Dinc (Dallas), Swaminathan Sankaran (Allen, Texas) and Sasank Garikapati (Dallas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Electrical balance duplexers (EBDs). An example EBD includes a differential TX port coupled to a first coil, a differential RX port coupled to a second coil, a differential ANT port coupled to a third coil, and a differential BAL port coupled to a fourth coil. In some cases, the first and second coils are arranged such that magnetic flux cancellation is achieved be...