DOHERTY AMPLIFIER CIRCUIT

Organization Name

Inventor(s)

DOHERTY AMPLIFIER CIRCUIT - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240186956 titled 'DOHERTY AMPLIFIER CIRCUIT

The abstract describes a Doherty amplifier circuit that consists of a carrier amplifier, a peak amplifier, bias circuits for each amplifier, and a control circuit that adjusts the bias of the peak amplifier based on the input signal and the drive level of the carrier amplifier.

The Doherty amplifier circuit amplifies high-frequency signals efficiently.
It includes separate amplifiers for the carrier and peak signals.
Bias circuits provide the necessary operating conditions for each amplifier.
The control circuit optimizes the performance by adjusting the bias of the peak amplifier.
The innovation improves the overall efficiency and output power of the amplifier circuit.

Potential Applications: - Telecommunications - Wireless communication systems - Radar systems

Problems Solved: - Improving efficiency in high-frequency signal amplification - Enhancing output power without increasing distortion

Benefits: - Increased efficiency - Improved signal quality - Enhanced power output

Commercial Applications: Title: "Efficient High-Frequency Signal Amplification for Telecommunications and Radar Systems" This technology can be utilized in telecommunications infrastructure, radar systems, and other high-frequency signal processing applications, leading to improved performance and cost-effectiveness in these industries.

Prior Art: There are existing Doherty amplifier designs, but this specific circuit configuration with separate bias circuits and a control circuit for optimizing performance appears to be a novel approach in the field.

Frequently Updated Research: Researchers are continually exploring ways to enhance the efficiency and performance of high-frequency signal amplification circuits, with a focus on improving power output and minimizing distortion.

Questions about Doherty Amplifier Circuit: 1. How does the control circuit adjust the bias of the peak amplifier based on the input signal and the drive level of the carrier amplifier? 2. What are the key advantages of using separate bias circuits for the carrier and peak amplifiers in a Doherty amplifier circuit?

Original Abstract Submitted

a doherty amplifier circuit includes a carrier amplifier that amplifies an input high frequency signal, a peak amplifier that amplifies an input high frequency signal, a first bias circuit that applies a bias to the carrier amplifier, a second bias circuit that applies a bias to the peak amplifier, and a control circuit that controls the second bias circuit on the basis of an input high frequency signal and a signal indicating a drive level of the carrier amplifier.