Jeonghyeon Cha is a notable inventor based in Kyungsangbuk-do, South Korea. He has made significant contributions to the field of power amplification technology, holding two patents that showcase his innovative approach to enhancing communication systems.

Latest Patents

Cha's latest patents include a "Power Amplifying Apparatus Using Asymmetric Power Drive" and a "Doherty Amplifier." The power amplifying apparatus features a Doherty amplifier with a carrier amplifier and a peaking amplifier connected in parallel. Each component is equipped with an input/output matching circuit and an asymmetric power driver, which drives both amplifiers efficiently. The Doherty amplifier employs a multi-way extension, enhancing efficiency and linearity for mobile communications base stations and handsets. This design includes a carrier amplifier, multiple peak amplifiers, a power distribution unit, and a quarter wave impedance transformer.

Career Highlights

Throughout his career, Jeonghyeon Cha has worked with esteemed institutions such as the Pohang University of Science and Technology Foundation and Postech Foundation. His work has significantly impacted the development of advanced communication technologies.

Collaborations

Cha has collaborated with notable colleagues, including Bumman Kim and Youngoo Yang, contributing to various projects that advance the field of power amplification.

Conclusion

Jeonghyeon Cha's innovative patents and career achievements highlight his role as a key figure in the advancement of power amplification technology. His work continues to influence the efficiency and reliability of communication systems.

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