18540105. OUTPHASING AMPLIFIER simplified abstract (SUMITOMO ELECTRIC INDUSTRIES, LTD.)

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OUTPHASING AMPLIFIER

Organization Name

SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor(s)

Takashi Sumiyoshi of Osaka-shi (JP)

OUTPHASING AMPLIFIER - A simplified explanation of the abstract

This abstract first appeared for US patent application 18540105 titled 'OUTPHASING AMPLIFIER

The abstract describes an outphasing amplifier with multiple amplifiers, impedance converters, and matching circuits to combine signals with specific phase differences for optimal performance.

  • The outphasing amplifier includes first to fourth amplifiers, first and second impedance converters, and matching circuits to ensure proper impedance matching.
  • The third matching circuit matches the output impedance of the first impedance converter with the input impedance of the third amplifier.
  • The fourth matching circuit matches the output impedance of the second impedance converter with the input impedance of the fourth amplifier.
  • The combiner combines the amplified signals from the third and fourth amplifiers with specific phase differences for efficient signal combining.
  • The first signal input to the third matching circuit has a phase difference of less than 90° with respect to the first signal output from the first matching circuit.
  • The second signal input to the fourth matching circuit has a phase difference of more than 90° with respect to the second signal output from the second matching circuit.

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

Problems Solved: - Efficient signal combining in outphasing amplifiers - Optimal impedance matching for improved performance

Benefits: - Enhanced signal quality - Increased efficiency in power amplification - Improved overall system performance

Commercial Applications: Title: "Advanced Outphasing Amplifier Technology for Wireless Communication Systems" This technology can be used in the development of high-performance wireless communication systems, offering improved signal quality and efficiency in power amplification. The market implications include increased demand for advanced amplifier technologies in the telecommunications industry.

Questions about Outphasing Amplifier Technology: 1. How does the phase difference between signals impact the performance of the outphasing amplifier? 2. What are the key advantages of using multiple amplifiers in an outphasing amplifier system?


Original Abstract Submitted

An outphasing amplifier includes first to fourth amplifiers, first and second impedance converters, a first matching circuit, a second matching circuit, a third matching circuit matching output impedance of first impedance converter with input impedance of third amplifier, a fourth matching circuit matching output impedance of second impedance converter with input impedance of fourth amplifier, and a combiner combining the first signal amplified by third amplifier and the second signal amplified by fourth amplifier, wherein a first phase difference of the first signal input to third matching circuit with respect to the first signal output from first matching circuit is less than 90° at a center frequency of an operating frequency band, and a second phase difference of the second signal input to fourth matching circuit with respect to the second signal output from second matching circuit is more than 90° at the center frequency.

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