Decoupling circuits for filtering a voltage supply of multiple power amplifiers
First Claim
1. A voltage supply apparatus, comprising:
- a voltage supply; and
a plurality of power amplifier (PA) decoupling circuits, each PA decoupling circuit connected to the voltage supply and providing a filtered voltage supply to a corresponding one of a plurality power amplifiers, each PA decoupling circuit configured to suppress noise of the provided filtered voltage supply below a threshold at one or more selected frequencies, wherein the suppression is provided by the PA decoupling circuit operating in conjunction with at least one other of the plurality of PA decoupling circuits;
whereineach PA decoupling circuit is operative to resonate at one or more predefined critical frequencies of at least one of the plurality of power amplifiers that do not correspond with the PA decoupling circuit;
whereinthe one or more selected frequencies include a band of frequencies centered on a duplex frequency of the different one of the plurality of power amplifiers than a power amplifier that correspond with the PA decoupling circuit, where a width of the band of frequencies corresponds to a bandwidth resulting from modulation of the carrier transmitted by the different one of the plurality of power amplifiers.
2 Assignments
0 Petitions
Accused Products
Abstract
Embodiments for at least one method and apparatus of a voltage supply are disclosed. One voltage supply apparatus includes a voltage supply, a plurality of power amplifier (PA) decoupling circuits, and a plurality of power amplifiers. Each PA decoupling circuit is connected to the voltage supply and provides a filtered voltage supply to a corresponding one of the plurality power amplifiers. Each PA decoupling circuit configured to suppress noise of the provided filtered voltage supply below a threshold at one or more selected frequencies, wherein the suppression is provided by the PA decoupling circuit operating in conjunction with at least one other of the plurality of PA decoupling circuits.
17 Citations
18 Claims
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1. A voltage supply apparatus, comprising:
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a voltage supply; and a plurality of power amplifier (PA) decoupling circuits, each PA decoupling circuit connected to the voltage supply and providing a filtered voltage supply to a corresponding one of a plurality power amplifiers, each PA decoupling circuit configured to suppress noise of the provided filtered voltage supply below a threshold at one or more selected frequencies, wherein the suppression is provided by the PA decoupling circuit operating in conjunction with at least one other of the plurality of PA decoupling circuits;
whereineach PA decoupling circuit is operative to resonate at one or more predefined critical frequencies of at least one of the plurality of power amplifiers that do not correspond with the PA decoupling circuit;
whereinthe one or more selected frequencies include a band of frequencies centered on a duplex frequency of the different one of the plurality of power amplifiers than a power amplifier that correspond with the PA decoupling circuit, where a width of the band of frequencies corresponds to a bandwidth resulting from modulation of the carrier transmitted by the different one of the plurality of power amplifiers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A voltage supply apparatus, comprising:
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a voltage supply; and a plurality of power amplifier (PA) decoupling circuits, each PA decoupling circuit connected to the voltage supply and providing a filtered voltage supply to a corresponding one of a plurality power amplifiers, each PA decoupling circuit configured to suppress noise of the provided filtered voltage supply below a threshold at one or more selected frequencies, wherein the suppression is provided by the PA decoupling circuit operating in conjunction with at least one other of the plurality of PA decoupling circuits;
whereineach PA decoupling circuit is operative to resonate at one or more predefined critical frequencies of at least one of the plurality of power amplifiers that do not correspond with the PA decoupling circuit;
whereineach of the PA decoupling circuits comprises a decoupling capacitor, and wherein a sum of the decoupling capacitors resonates with a series inductance, wherein a frequency of the resonance is below a second frequency, wherein the second frequency is set based on a duplex frequency minus a bandwidth of a transmission signal passing through at least one of the one of the plurality power amplifiers, and wherein the series inductance is at an output of the voltage supply.
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10. A method of providing a plurality of filtered regulated voltages to plurality of power amplifiers, comprising:
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generating a regulated voltage; generating, by a plurality of decoupling circuits, the plurality of filtered regulated voltages, wherein each decoupling circuit provides a filtered regulated voltage to a corresponding one of plurality power amplifiers, each decoupling circuit configured to suppress noise of the provided filtered regulated voltage below a threshold at one or more selected frequencies, wherein the suppression is provided by the decoupling circuit operating in conjunction with at least one other of the plurality of decoupling circuits;
whereineach decoupling circuit is operative to resonate at one or more predefined critical frequencies of at least one of the plurality of power amplifiers that do not correspond with the decoupling circuit; and
whereinthe one or more selected frequencies include a band of frequencies centered on a duplex frequency of the different one of the plurality of power amplifiers than a power amplifier that correspond with the PA decoupling circuit, where a width of the band of frequencies corresponds to a bandwidth resulting from modulation of the carrier transmitted by the different one of the plurality of power amplifiers. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A mobile device, comprising:
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a plurality of power amplifiers; a voltage regulator; a plurality of power amplifier (PA) decoupling circuits, each PA decoupling circuit connected to the voltage regulator and providing a filtered voltage supply to a corresponding one of the plurality power amplifiers, each PA decoupling circuit configured to suppress noise of provided filtered voltage supply below a threshold at one or more selected frequencies, wherein the suppression is provided by the PA decoupling circuit operating in conjunction with at least one other of the plurality of PA decoupling circuits;
whereineach PA decoupling circuit is operative to resonate at one or more predefined critical frequencies of at least one of the plurality of power amplifiers that do not correspond with the PA decoupling circuit;
whereinthe one or more selected frequencies include a band of frequencies centered on a duplex frequency of the different one of the plurality of power amplifiers than a power amplifier that correspond with the PA decoupling circuit, where a width of the band of frequencies corresponds to a bandwidth resulting from modulation of the carrier transmitted by the different one of the plurality of power amplifiers. - View Dependent Claims (18)
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Specification