Quadrature communications device with power combiner and related methods
AssigneesOntario, Canada), Research In Motion Limited (a corporation organized under the laws of the Province of
InventorKhurram Muhammad
Life of this patent
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Abstract
A communications device may include In-phase (I) power amplifiers configured to generate I amplified signals, Quadrature (Q) power amplifiers configured to generate Q amplified signals, an I controller coupled to the I power amplifiers and configured to selectively enable some of the I power amplifiers, and a Q controller coupled to the Q power amplifiers and configured to selectively enable some of the Q power amplifiers. The communications device may also include a power combiner configured to combine the I amplified signals and the Q amplified signals in a combined amplified signal, and an antenna coupled to the power combiner.
Claims20
A communications device comprising:
- a plurality of In-phase (I) power amplifiers configured to generate a plurality of I amplified signals;
- a plurality of Quadrature (Q) power amplifiers configured to generate a plurality of Q amplified signals;
- an I controller coupled to said plurality of I power amplifiers and configured to selectively enable at least one of said plurality of I power amplifiers;
- a Q controller coupled to said plurality of Q power amplifiers and configured to selectively enable at least one of said plurality of Q power amplifiers;
- a power combiner configured to combine the plurality of I amplified signals and the plurality of Q amplified signals in a combined amplified signal;
- and
- an antenna coupled to said power combiner.
A communications device comprising:
- a plurality of In-phase (I) pre-amplifiers configured to generate a plurality of I amplified signals;
- a plurality of Quadrature (Q) pre-amplifiers configured to generate a plurality of Q amplified signals;
- an I controller coupled to said plurality of I pre-amplifiers and configured to selectively enable at least one of said plurality of I pre-amplifiers;
- a Q controller coupled to said plurality of Q pre-amplifiers and configured to selectively enable at least one of said plurality of Q pre-amplifiers;
- a phase locked loop (PLL) configured to generate I and Q carrier signals for said pluralities of I and Q pre-amplifiers;
- a power combiner configured to combine the plurality of I amplified signals and the plurality of Q amplified signals in a combined amplified signal;
- and
- an antenna coupled to said power combiner.
A method of operating a communications device comprising:
- using a plurality of In-phase (I) power amplifiers to generate a plurality of I amplified signals;
- using a plurality of Quadrature (Q) power amplifiers to generate a plurality of Q amplified signals;
- using an I controller to selectively enable at least one of the plurality of I power amplifiers;
- using a Q controller to selectively enable at least one of the plurality of Q power amplifiers;
- using a power combiner to combine the plurality of I amplified signals and the plurality of Q amplified signals in a combined amplified signal;
- and
- using an antenna to transmit the combined amplified signal.
Dependencies are inferred from the claim text.