Location History:
- Duluth, GA (US) (2012)
- San Diego, CA (US) (2015 - 2018)
Company Filing History:
3 out of 41,498 
1 out of 7,593 Years Active: 2012-2018
Title: Inventor Spotlight: Jeongwon Cha from San Diego, CA
Introduction
Jeongwon Cha is an innovative inventor based in San Diego, California, known for his contributions to the field of electronics and amplifiers. With a portfolio that includes four patents, Cha has made significant advancements in radio frequency technology and power amplification.
Latest Patents
Cha's most recent patents highlight his expertise in creating advanced circuitry. One notable invention is the "Adaptive Bias Circuit for a Radio Frequency (RF) Amplifier," which features a unique circuit design. This circuit incorporates a first transistor with a gate, source, and drain, along with an inductor strategically coupled to enhance performance. By connecting the source to a current source and the gate to an amplifier, Cha's invention optimizes RF amplification processes.
Another significant invention is the "Multi-Mode Multi-Band Power Amplifiers." This design includes an amplifier module with a transmit path that integrates both a first amplifier and a second amplifier. A transformer is also included, which can be switchably configured to either couple the amplifiers in series in one mode or to bypass the second amplifier in another mode. This innovation provides versatile solutions for various amplification needs.
Career Highlights
Cha has built an impressive career, contributing his skills and knowledge to prominent companies in the technology sector. He has worked with Qualcomm Incorporated, a leader in wireless technology, and Samsung Electro-Mechanics Co., Ltd., renowned for its advancements in electronic components. His experiences at these organizations have bolstered his reputation as a skilled inventor.
Collaborations
Throughout his career, Jeongwon Cha has collaborated with talented engineers and innovators, including colleagues such as Chang-Ho Lee and Minsik Ahn. These partnerships have allowed for the exchange of ideas and fostered a collaborative environment, further enhancing the innovative landscape in which he operates.
Conclusion
Jeongwon Cha exemplifies the spirit of innovation in the tech industry. His patents not only demonstrate his technical prowess but also reflect his commitment to pushing the boundaries of what is possible in electronics. With continuing advancements in his field, we can anticipate that Cha will produce even more groundbreaking inventions in the future.