Transformer, power matching network and digital power amplifier
OwnerHuizhen QIAN, Xun LUO +1inventors
InventorsHuizhen QIAN, Xun LUO, Robert Bogdan STASZEWSKI
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Abstract
A transformer includes: a primary winding comprising a first port, a second port and a metal layer connected between the first port and the second port, the metal layer comprising a plurality of sections of different electrical lengths and/or characteristic impedances; and a secondary winding electromagnetically coupled with the primary winding, the secondary winding comprising a first port, a second port and a metal layer connected between the first port and the second port, the metal layer comprising a plurality of sections of different electrical lengths and/or characteristic impedances.
Claims17
A transformer, comprising:
- a primary winding comprising a first port, a second port, and a metal layer connected between the first port of the primary winding and the second port of the primary winding, wherein the metal layer of the primary winding comprises a plurality of sections of different electrical lengths or characteristic impedances;
- and
- a secondary winding electromagnetically coupled with the primary winding, the secondary winding comprising a first port, a second port, and a metal layer connected between the first port of the secondary winding and the second port of the secondary winding, wherein the metal layer of the secondary winding comprises a plurality of sections of different electrical lengths or characteristic impedances.
A power matching network, the power matching network comprising:
- a transformer, comprising:
- a primary winding comprising a first port, a second port, and a metal layer connected between the first port of the primary winding and the second port of the primary winding, wherein the metal layer of the primary winding comprises a plurality of sections of different electrical lengths or characteristic impedances;
- and
- a secondary winding electromagnetically coupled with the primary winding, the secondary winding comprising a first port of the secondary winding, a second port of the secondary winding, and a metal layer connected between the first port and the second port, wherein the metal layer of the secondary winding comprises a plurality of sections of different electrical lengths or characteristic impedances;
- wherein each input capacitance of a pair of input capacitances is coupled to a respective port of the primary winding;
- and
- wherein an output capacitance is coupled between the first port and the second port of the secondary winding.
A digital power amplifier, comprising:
- a power matching network comprising a transformer that includes:
- a primary winding comprising a first port, a second port, and a metal layer connected between the first port of the primary winding and the second port of the primary winding, wherein the metal layer of the primary winding comprises a plurality of sections of different electrical lengths or characteristic impedances, and
- a secondary winding electromagnetically coupled with the primary winding, the secondary winding comprising a first port of the secondary winding, a second port of the secondary winding, and a metal layer connected between the first port and the second port, wherein the metal layer of the secondary winding comprises a plurality of sections of different electrical lengths or characteristic impedances,
- wherein each input capacitance of a pair of input capacitances is coupled to a respective port of the primary winding;
- and wherein an output capacitance is coupled between the first port and the second port of the secondary winding;
- and
- a differential cascode switch mode transistor array coupled to the first port and the second port of the primary winding,
- wherein a load is connectable to the first port and the second port of the secondary winding.
Dependencies are inferred from the claim text.