ENHANCED AMPLIFIER EFFICIENCY THROUGH CASCODE CURRENT STEERING
First Claim
Patent Images
1. A power amplifier (PA) comprising:
- a common emitter configured to receive a radio-frequency (RF) signal;
a carrier amplifier coupled to the common emitter to form a carrier cascode configuration, a collector of the carrier amplifier provided with a first supply voltage; and
a peaking amplifier coupled to the common emitter to form a peaking cascode configuration, a collector of the peaking amplifier provided with a second supply voltage greater than the first supply voltage.
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Abstract
According to some implementations, a power amplifier (PA) includes a common emitter configured to receive a radio-frequency (RF) signal. The PA also includes a carrier amplifier coupled to the common emitter to form a carrier cascode configuration, a collector of the carrier amplifier provided with a first supply voltage. The PA further includes a peaking amplifier coupled to the common emitter to form a peaking cascode configuration, a collector of the peaking amplifier provided with a second supply voltage greater than the first supply voltage.
17 Citations
20 Claims
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1. A power amplifier (PA) comprising:
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a common emitter configured to receive a radio-frequency (RF) signal; a carrier amplifier coupled to the common emitter to form a carrier cascode configuration, a collector of the carrier amplifier provided with a first supply voltage; and a peaking amplifier coupled to the common emitter to form a peaking cascode configuration, a collector of the peaking amplifier provided with a second supply voltage greater than the first supply voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A radio-frequency (RF) module comprising:
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a packaging substrate configured to receive a plurality of components; and a power amplifier (PA) implemented on the packaging substrate, the PA including a common emitter configured to receive an RF signal, the PA further including a carrier amplifier coupled to the common emitter to form a carrier cascode configuration, a collector of the carrier amplifier provided with a first supply voltage, the PA further including a peaking amplifier coupled to the common emitter to form a peaking cascode configuration, a collector of the peaking amplifier provided with a second supply voltage greater than the first supply voltage. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A radio-frequency (RF) device comprising:
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a transceiver configured to generate a RF signal; a front-end module (FEM) in communication with the transceiver, the FEM including a packaging substrate configured to receive a plurality of components, the FEM further including a power amplifier (PA) implemented on the packaging substrate, the PA including a common emitter configured to receive an RF signal, the PA further including a carrier amplifier coupled to the common emitter to form a carrier cascode configuration, a collector of the carrier amplifier provided with a first supply voltage, the PA further including a peaking amplifier coupled to the common emitter to form a peaking cascode configuration, a collector of the peaking amplifier provided with a second supply voltage greater than the first supply voltage; and an antenna in communication with the FEM, the antenna configured to transmit the amplified RF signal. - View Dependent Claims (19, 20)
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Specification