US 12,292,489 B2
Pin diode current reduction for MRI transmit coils
Xiaoyu Yang, Indiana, PA (US)
Assigned to Quality Electrodynamics, LLC, Mayfield Village, OH (US)
Filed by Quality Electrodynamics, LLC, Mayfield Village, OH (US)
Filed on Mar. 7, 2023, as Appl. No. 18/179,475.
Claims priority of provisional application 63/320,368, filed on Mar. 16, 2022.
Prior Publication US 2023/0296705 A1, Sep. 21, 2023
Int. Cl. G01R 33/34 (2006.01); G01R 33/341 (2006.01); G01R 33/36 (2006.01)
CPC G01R 33/341 (2013.01) [G01R 33/34076 (2013.01); G01R 33/3657 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A magnetic resonance imaging (MRI) radio frequency (RF) coil, comprising:
a conductive trace forming a coil inductor and comprising a first trace segment and a second trace segment separated by a separation;
a first reactive element separating the first trace segment from the second trace segment, and electrically coupled from the first trace segment to the second trace segment, at the separation; and
a circuit branch separating the first trace segment from the second trace segment, and electrically coupled in parallel with the first reactive element, at the separation, wherein the circuit branch comprises:
a second reactive element; and
a sub-circuit branch electrically coupled in parallel with the second reactive element, wherein the sub-circuit branch comprises a third reactive element and an electronic switch that are electrically coupled in series;
wherein the first reactive element and the third reactive element are one of capacitive and inductive, and wherein the second reactive element is another one of capacitive and inductive.