Patent ID: 11909363
Assignee: PRODRIVE TECHNOLOGIES INNOVATION SERVICES B.V.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 14:
15. The radiofrequency power amplifier according to claim 1, further comprising:
a power divider, wherein the power divider comprises a second balun transformer,
wherein the second balun transformer comprises an unbalanced coil extending between a first single-ended signal terminal of the second balun transformer and a first reference port of the second balun transformer and a balanced coil extending between a first balanced signal terminal and a fourth balanced signal terminal of the second balun transformer;
wherein the unbalanced coil and the balanced coil of the second balun transformer are inductively coupled and electrically isolated from each other;
wherein the second balun transformer further comprises at least one auxiliary coil electrically isolated from the unbalanced coil and the balanced coil of the second balun transformer;
wherein the at least one auxiliary coil of the second balun transformer is inductively coupled to the unbalanced coil of the second balun transformer and extends between a third balanced signal terminal and a fourth balanced signal terminal of the second balun transformer, and the second balun transformer forms a balanced divider;
wherein the first, second, third and fourth balanced signal terminals of the second balun transformer are coupled to the plurality of power transistor pairs.