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US 10,110,183 B2Granted
Power amplification system with common base pre-amplifier
AssigneeSkyworks Solutions, Inc.
InventorsAleksey A. Lyalin, Taesong Hwang, Russ Alan Reisner
Life of this patent
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Abstract
Power amplification system with common base pre-amplifier. A power amplification system can include a common base amplifier configured to amplify an input radio-frequency (RF) signal received at an input node to generate an intermediate RF signal at an intermediate node. The power amplification system can further include a power amplifier configured to amplify the intermediate RF signal received at the intermediate node to generate an output RF signal at an output node.
Claims17
A power amplification system comprising:
- a common base amplifier including a transistor having an emitter, a collector, and a base, and configured to amplify an input signal received at an input node coupled to the emitter to generate an intermediate signal at an intermediate node coupled to the collector, the base coupled to a ground potential;
- an LC tank circuit including an inductor coupled between the emitter and the ground potential and a capacitor coupled between the emitter and the ground potential;
- and
- a power amplifier configured to amplify the intermediate signal received at the intermediate node to generate an output signal at an output node.
1 more element
A power amplification system comprising:
- a common base amplifier including a transistor having an emitter, a collector, and a base, and configured to amplify an input signal received at an input node coupled to the emitter to generate an intermediate signal at an intermediate node coupled to the collector, the base coupled to a ground potential via an impedance that includes a capacitor, the base further coupled to a battery voltage via a resistor;
- and
- a power amplifier configured to amplify the intermediate signal received at the intermediate node to generate an output signal at an output node.
A power amplification system comprising:
- a common base amplifier including a transistor having an emitter, a collector, and a base, and configured to amplify an input signal received at an input node coupled to the emitter to generate an intermediate signal at an intermediate node coupled to the collector, the base coupled to a battery voltage via a resistor, the collector coupled to the battery node via an inductor;
- and
- a power amplifier configured to amplify the intermediate signal received at the intermediate node to generate an output signal at an output node.
A radio-frequency module comprising:
- a packaging substrate configured to receive a plurality of components;
- and
- a power amplification system implemented on the packaging substrate, and including a common base amplifier configured to amplify an input signal received at an input node to generate an intermediate signal at an intermediate node, the common base amplifier including a transistor having an emitter coupled to the input node, a collector coupled to the intermediate node, and a base coupled to a ground potential, the power amplification system further including an LC tank circuit having an inductor coupled between the emitter and the ground potential and a capacitor coupled between the emitter and the ground potential, the power amplification system further including a power amplifier configured to amplify the intermediate signal received at the intermediate node to generate an output signal at an output node.
A wireless device comprising:
- a transceiver configured to generate an input signal;
- a front-end module in communication with the transceiver, and including a power amplification system that includes a common base amplifier configured to amplify at least a portion of the input signal received at an input node to generate an intermediate signal at an intermediate node, the common base amplifier including a transistor having an emitter coupled to the input node, a collector coupled to the intermediate node, and a base coupled to a ground potential, the power amplification system further including an LC tank circuit having an inductor coupled between the emitter and the ground potential and a capacitor coupled between the emitter and the ground potential, the power amplification system further including a power amplifier configured to amplify the intermediate signal received at the intermediate node to generate an output signal at an output node;
- and
- an antenna in communication with the front-end module, and configured to transmit the output signal.
1 more element
Dependencies are inferred from the claim text.