Linear mode and non-linear mode quadrature PA circuitry
First Claim
1. Circuitry comprising:
- a first multi-mode multi-band quadrature radio frequency (RF) power amplifier (PA) coupled to multi-mode multi-band alpha switching circuitry via a single alpha PA output, the multi-mode multi-band alpha switching circuitry comprising;
a first alpha switching device comprising a plurality of switching elements coupled in series, the first alpha switching device coupled between the single alpha PA output and a first alpha non-linear mode output, wherein the first alpha non-linear mode output is associated with a first non-linear mode RF communications band; and
a plurality of alpha switching devices, each of the plurality of alpha switching devices comprising a plurality of switching elements coupled in series, wherein each one of the plurality of alpha switching devices are coupled between the single alpha PA output and a corresponding one of a plurality of alpha linear mode outputs, such that each of the plurality of alpha linear mode outputs is associated with a corresponding one of a first plurality of linear mode RF communications bands.
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Abstract
Embodiments of the present disclosure relate to multi-mode multi-band radio frequency (RF) power amplifier (PA) circuitry, which includes a multi-mode multi-band quadrature RF PA coupled to multi-mode multi-band switching circuitry via a single output. The switching circuitry provides at least one non-linear mode output and multiple linear mode outputs. The non-linear mode output may be associated with at least one non-linear mode RF communications band and each linear mode output may be associated with a corresponding linear mode RF communications band. The outputs from the switching circuitry may be coupled to an antenna port via front-end aggregation circuitry. The quadrature nature of the quadrature PA path may provide tolerance for changes in antenna loading conditions.
269 Citations
20 Claims
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1. Circuitry comprising:
a first multi-mode multi-band quadrature radio frequency (RF) power amplifier (PA) coupled to multi-mode multi-band alpha switching circuitry via a single alpha PA output, the multi-mode multi-band alpha switching circuitry comprising; a first alpha switching device comprising a plurality of switching elements coupled in series, the first alpha switching device coupled between the single alpha PA output and a first alpha non-linear mode output, wherein the first alpha non-linear mode output is associated with a first non-linear mode RF communications band; and a plurality of alpha switching devices, each of the plurality of alpha switching devices comprising a plurality of switching elements coupled in series, wherein each one of the plurality of alpha switching devices are coupled between the single alpha PA output and a corresponding one of a plurality of alpha linear mode outputs, such that each of the plurality of alpha linear mode outputs is associated with a corresponding one of a first plurality of linear mode RF communications bands. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. Circuitry comprising:
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a first multi-mode multi-band quadrature radio frequency (RF) power amplifier (PA) coupled to multi-mode multi-band alpha switching circuitry via a single alpha PA output, the multi-mode multi-band alpha switching circuitry having; a first alpha non-linear mode output associated with a first non-linear mode RF communications band; and a plurality of alpha linear mode outputs, such that each of the plurality of alpha linear mode outputs is associated with a corresponding one of a first plurality of linear mode RF communications bands; a second multi-mode multi-band quadrature RF PA coupled to multi-mode multi-band beta switching circuitry via a single beta PA output, the multi-mode multi-band beta switching circuitry having; a first beta non-linear mode output; and a plurality of beta linear mode outputs, such that each of the plurality of beta linear mode outputs is associated with a corresponding one of a second plurality of linear mode RF communications bands. - View Dependent Claims (17, 18, 19)
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20. A method comprising:
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providing a first multi-mode multi-band quadrature radio frequency (RF) power amplifier (PA) and multi-mode multi-band alpha switching circuitry; providing a second multi-mode multi-band quadrature RF PA and multi-mode multi-band beta switching circuitry; selecting one of a plurality of communications modes comprising a first alpha non-linear mode, a plurality of alpha linear modes, a first beta non-linear mode, and a plurality of beta linear modes; during the first alpha non-linear mode and during each of the plurality of alpha linear modes, receiving and amplifying a first RF input signal to provide a first RF output signal via a single alpha PA output; during the first beta non-linear mode and during each of the plurality of beta linear modes, receiving and amplifying a second RF input signal to provide a second RF output signal via a single beta PA output; during the first alpha non-linear mode, receiving and forwarding the first RF output signal to provide a first alpha RF transmit signal via a first alpha non-linear mode output; during each of the plurality of alpha linear modes, receiving and forwarding the first RF output signal to provide a corresponding one of a plurality of alpha RF transmit signals via a corresponding one of a plurality of alpha linear mode outputs; during the first beta non-linear mode, receiving and forwarding the second RF output signal to provide a first beta RF transmit signal via a first beta non-linear mode output; and during each of the plurality of beta linear modes, receiving and forwarding the second RF output signal to provide a first beta transmit signal via a first beta non-linear mode output.
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Specification