18351079. DOHERTY AMPLIFICATION DEVICE simplified abstract (Fujitsu Limited)
Contents
- 1 DOHERTY AMPLIFICATION DEVICE
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 DOHERTY AMPLIFICATION DEVICE - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Unanswered Questions
- 1.11 Original Abstract Submitted
DOHERTY AMPLIFICATION DEVICE
Organization Name
Inventor(s)
Akihiko Komatsuzaki of Kawasaki (JP)
Mitsuharu Hamano of Sendai (JP)
DOHERTY AMPLIFICATION DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18351079 titled 'DOHERTY AMPLIFICATION DEVICE
Simplified Explanation
The abstract describes a Doherty amplification device that includes a distributor, first and second amplifiers, a combiner, and an adjuster. The adjuster includes calculation circuits to obtain characteristics of the output signal, classify them into regions, calculate statistical values, and determine a phase-delay to minimize distortion in the output signal.
- The Doherty amplification device includes a distributor to distribute the input signal into first and second signals after distortion-compensation.
- It also includes first and second amplifiers to amplify the signals, a combiner to combine them, and an adjuster to adjust the phase-delay of the signals.
- The adjuster includes calculation circuits to obtain characteristics of the output signal, classify them into regions, calculate statistical values, and determine a phase-delay to minimize distortion in the output signal.
Potential Applications
This technology can be applied in wireless communication systems, radar systems, and other RF applications where high efficiency and low distortion amplification are required.
Problems Solved
This technology solves the problem of minimizing distortion in the output signal of an amplification device, improving overall signal quality and efficiency.
Benefits
The benefits of this technology include improved signal quality, increased efficiency, and reduced distortion in amplified signals.
Potential Commercial Applications
Potential commercial applications of this technology include use in base stations, satellite communication systems, and other RF systems where high-performance amplification is necessary.
Possible Prior Art
One possible prior art for this technology could be traditional Doherty amplification techniques used in RF systems to improve efficiency and linearity.
Unanswered Questions
How does this technology compare to other distortion-compensation techniques in amplification devices?
This article does not provide a direct comparison with other distortion-compensation techniques, leaving the reader to wonder about the specific advantages of this approach.
What are the specific statistical values used to determine the phase-delay for minimizing distortion in the output signal?
The article mentions calculating statistical values for each region but does not delve into the specific metrics or parameters used in this calculation.
Original Abstract Submitted
A Doherty amplification device includes a distributor to distribute, into first and second signals, an input signal after distortion-compensation, first and second amplifiers, a combiner to combine the amplified first and second signals, and an adjuster between the distributor and the first or second amplifiers and to include a first calculation circuit to obtain a first-characteristic indicating a relationship of a gain of an output signal with respect to reference-power of the input signal, based on the output signal and the input signal, a classification circuit to classify the first-characteristic into regions according to the reference-power, a second calculation circuit to obtain a statistical-value of the gain for each regions, and a determination circuit to set, in the adjuster, a phase-delay at which distortion to be generated in the output signal is minimized, based on the statistical-value, wherein the adjuster adjusts the phase-delay of the first or second signals.
