Radio-frequency power amplifiers driven by boost converter
AssigneeSkyworks Solutions, Inc.
InventorPhilip John LEHTOLA
Life of this patent
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Abstract
Radio-frequency (RF) power amplifiers driven by boost converter. In some embodiments, a power amplification system can include a supply system configured to provide a high-voltage (HV) supply signal based on a battery voltage, and a power amplifier (PA) configured to receive the HV supply signal and amplify an RF signal. The power amplification system can further include an output path configured to route the amplified RF signal to a filter. Such an output path can be substantially free of either or both of an impedance transformation circuit and a band selection switch.
Claims20
A power amplification system comprising:
- a supply system configured to provide a high-voltage (HV) supply signal based on a battery voltage;
- a power amplifier (PA) configured to receive the HV supply signal and amplify a radio-frequency (RF) signal;
- and
- an output path configured to route the amplified RF signal to a filter.
A radio-frequency (RF) module comprising:
- a packaging substrate configured to receive a plurality of components;
- and
- a power amplification system implemented on the packaging substrate, the power amplification system including a supply system configured to provide a high-voltage (HV) supply signal based on a battery voltage, the power amplification system further including a plurality of power amplifiers (PAs), each PA configured to receive the HV supply signal and amplify a radio-frequency (RF) signal, the power amplification system further including an output path configured to route the amplified RF signal from the corresponding PA to a corresponding filter.
The RF module of claim 16 wherein each of the plurality of PAs is further configured to drive approximately a characteristic load impedance of the corresponding output filter.
The RF module of claim 17 wherein each output path is substantially free of an impedance transformation circuit between the corresponding PA and output filter.
A wireless device comprising:
- a transceiver configured to generate a radio-frequency (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 amplification system implemented on the packaging substrate, the power amplification system including a supply system configured to provide a high-voltage (HV) supply signal based on a battery voltage, the power amplification system further including a plurality of power amplifiers (PAs), each PA configured to receive the HV supply signal and amplify a radio-frequency (RF) signal, the power amplification system further including an output path configured to route the amplified RF signal from the corresponding PA to a corresponding filter;
- and
- an antenna in communication with the FEM, the antenna configured to transmit the amplified RF signal.
Dependencies are inferred from the claim text.