POWER AMPLIFIER CIRCUIT AND COMMUNICATION DEVICE

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POWER AMPLIFIER CIRCUIT AND COMMUNICATION DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240267012 titled 'POWER AMPLIFIER CIRCUIT AND COMMUNICATION DEVICE

The abstract of a patent application describes a power amplifier circuit that includes an amplifier transistor performing power amplification of a radio-frequency input signal.

The power amplifier circuit has a power supply terminal and an amplifier transistor with base, collector, and emitter terminals.
The amplifier transistor amplifies the radio-frequency input signal received through the base terminal and outputs a radio-frequency signal from the collector terminal.
The transistor receives a first bias current via the base terminal when a first power supply voltage is applied and a second bias current, smaller than the first, when a higher second power supply voltage is applied.

Potential Applications: - This technology can be used in radio-frequency communication systems. - It can be applied in radar systems for signal amplification. - Power amplifiers like this can be utilized in wireless communication devices.

Problems Solved: - Provides efficient power amplification of radio-frequency signals. - Allows for bias current adjustment based on power supply voltage.

Benefits: - Improved signal amplification in radio-frequency applications. - Flexibility in bias current control for different power supply voltages.

Commercial Applications: Title: "Advanced Power Amplifier Circuits for Enhanced Signal Amplification in Communication Systems" This technology can be commercialized in the telecommunications industry for high-performance signal amplification in various devices like smartphones, routers, and base stations.

Prior Art: Prior art related to this technology can be found in patents or research papers on power amplifier circuits, radio-frequency signal amplification, and bias current control in transistor circuits.

Frequently Updated Research: Researchers are constantly exploring ways to enhance the efficiency and performance of power amplifier circuits in radio-frequency applications. Stay updated on the latest advancements in this field to leverage the most cutting-edge technologies.

Questions about Power Amplifier Circuits: 1. How does the bias current adjustment impact the performance of the power amplifier circuit?

  - The bias current adjustment affects the operating point of the transistor, influencing its amplification characteristics.

2. What are the key considerations when designing a power amplifier circuit for radio-frequency applications?

  - Design considerations include linearity, efficiency, and stability of the amplifier circuit to ensure optimal performance in RF systems.

Original Abstract Submitted

a power amplifier circuit includes a power supply terminal and an amplifier transistor that has a base terminal, a collector terminal connected to the power supply terminal, and an emitter terminal and that performs power amplification of a radio-frequency input signal input through the base terminal to output a radio-frequency signal subjected to the power amplification from the collector terminal. the amplifier transistor receives first bias current via the base terminal assuming a first power supply voltage is applied to the power supply terminal and receives second bias current smaller than the first bias current via the base terminal assuming a second power supply voltage higher than the first power supply voltage is applied to the power supply terminal.