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US 2026/0171645 A1Published application
Coupled inductors utilizing interlaced spirals for power combiners, power splitters, and transformers
AssigneeQUALCOMM Incorporated
InventorsHsiao-Tsung YEN, Varish DIDDI, Francesco GATTA
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Abstract
A transformer, power combiner, and power splitter, each including: a first primary winding comprising a first metal spiral formed at least in part from a first metal layer, wherein the first metal spiral extends in a first direction from a first end to a second end; and a secondary winding comprising a second metal spiral formed at least in part from the first metal layer, wherein the second metal spiral extends in the first direction from a third end to a fourth end, wherein first metal spiral is interlaced with the second metal spiral.
Claims20
A power combiner, comprising:
- a first signal port configured to receive a first input signal;
- a second signal port configured to receive a second input signal;
- a third signal port configured to output an output signal with a power level related to a sum of a power level of the first input signal and a power level of the second input signal;
- a first transformer, comprising:
- a first primary winding comprising a first metal spiral formed at least in part from a first metal layer, wherein the first metal spiral extends in a counterclockwise direction from a first end coupled to the first signal port to a second end coupled directly or indirectly to a first signal ground;
- and
- a first secondary winding comprising a second metal spiral formed at least in part from the first metal layer, wherein the second metal spiral extends in the counterclockwise direction from a third end coupled to a second signal ground to a fourth end coupled directly or indirectly to the third signal port, wherein the first metal spiral is interlaced with the second metal spiral;
- and
- a second transformer, comprising:
- a second primary winding comprising a third metal spiral formed at least in part from the first metal layer, wherein the third metal spiral extends in a clockwise direction from a fifth end coupled to the second signal port to a sixth end coupled directly or indirectly to the first signal ground;
- and
- a second secondary winding comprising a fourth metal spiral formed at least in part from the first metal layer, wherein the fourth metal spiral extends in the clockwise direction from a seventh end coupled to the second signal ground to an eighth end coupled directly or indirectly to the third signal port, wherein the third metal spiral is interlaced with the fourth metal spiral.
9 more elements
A power splitter, comprising:
- a first signal port configured to receive an input signal;
- a second signal port configured to output a first output signal;
- a third signal port configured to output a second output signal, wherein a sum of respective power levels of the first and second output signals is related to a power level of the input signal;
- a first transformer, comprising:
- a first primary winding comprising a first metal spiral formed at least in part from a first metal layer, wherein the first metal spiral extends in a clockwise direction from a first end coupled to the first signal port to a second end coupled directly or indirectly to a first signal ground;
- and
- a first secondary winding comprising a second metal spiral formed at least in part from the first metal layer, wherein the second metal spiral extends in the clockwise direction from a third end coupled to a second signal ground to a fourth end coupled directly or indirectly to the second signal port, wherein the first metal spiral is interlaced with the second metal spiral;
- and
- a second transformer, comprising:
- a second primary winding comprising a third metal spiral formed at least in part from the first metal layer, wherein the third metal spiral extends in a counterclockwise direction from a fifth end coupled to the first signal port to a sixth end coupled to a third signal ground;
- and
- a second secondary winding comprising a fourth metal spiral formed at least in part from the first metal layer, wherein the fourth metal spiral extends in the counterclockwise direction from a seventh end coupled to the second signal ground to an eighth end coupled to the third signal port, wherein the third metal spiral is interlaced with the fourth metal spiral.
9 more elements
A transformer, comprising:
- a first primary winding comprising a first metal spiral formed at least in part from a first metal layer, wherein the first metal spiral extends in a first direction from a first end to a second end;
- and
- a secondary winding comprising a second metal spiral formed at least in part from the first metal layer, wherein the second metal spiral extends in the first direction from a third end to a fourth end, wherein first metal spiral is interlaced with the second metal spiral.
Dependencies are inferred from the claim text.