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US 10,355,652 B2Granted
Matrix power amplifier
AssigneeFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
InventorFriedbert van Raay
Life of this patent
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Abstract
A power amplifier includes a two-dimensional matrix of N×M active cells formed by stacking main terminals of multiple active cells in series. The stacks are coupled in parallel to form the two-dimensional matrix. The power amplifier includes a driver structure to coordinate the driving of the active cells so that the effective output power of the two-dimensional matrix is approximately N×M the output power of each of the active cells.
Claims20
A power amplifier comprising:
- a two-dimensional matrix of N×M active cells formed by stacking main terminals of multiple active cells in series, where the stacks are coupled in parallel to form the two-dimensional matrix, wherein the power amplifier further comprises a driver structure to coordinate the driving of the active cells so that the effective output power of the two-dimensional matrix is approximately N×M the output power of each of the active cells,
- wherein the driver structure comprises a row driver to distribute a drive signal to control terminals of a plurality of active cells in a plurality of stacks, the row driver comprising a plurality of distribution lines to couple portions of a drive signal to the control terminals of a plurality of active cells with appropriate delays to coordinate current conduction by the active cells.
A device comprising:
- an antenna assembly having an input impedance;
- and
- a power amplifier comprising a two-dimensional matrix of N×M active cells formed by stacking main terminals of multiple active cells in series, where the stacks are coupled in parallel to form the two-dimensional matrix, wherein the power amplifier further comprises a driver structure to coordinate the driving of the active cells so that the effective output power of the two-dimensional matrix is approximately N×M the output power of each of the active cells, wherein N and M are configured so that an optimum load impedance of the power amplifier substantially matches the input impedance of the antenna assembly,
- wherein the driver structure comprises a row driver to distribute a drive signal to control terminals of a plurality of active cells in a plurality of stacks, the row driver comprising a plurality of distribution lines to couple portions of a drive signal to the control terminals of a plurality of active cells with appropriate delays to coordinate current conduction by the active cells.
1 more element
A power amplifier comprising:
- a first two-dimensional matrix of N×M active cells formed by stacking main terminals of multiple active cells in series, where the stacks are coupled in parallel to form the two-dimensional matrix, wherein the power amplifier further comprises a driver structure to coordinate the driving of the active cells so that the effective output power of the two-dimensional matrix is approximately N×M the output power of each of the active cells;
- and
- a second two-dimensional matrix of active cells formed by stacking main terminals of multiple active cells in series, wherein the stacks are coupled in parallel to form the second two-dimensional matrix, wherein the two-dimensional matrix and the second two-dimensional matrix are coupled to form a complementary or quasi-complementary stage.
Dependencies are inferred from the claim text.