Company Filing History:

17 out of 7,603

Samsung Electro-mechanics Co., Ltd.

patents

10 out of 2,088

Georgia Tech Research Corporation

patents

1 out of 41,572

Qualcomm Incorporated

patents

4. 2 out of 832,880

Other

patents

where one patent can have more than one assignee

Years Active: 2008-2020

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20 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10547278 - Active cross-band isolation for a transformer-based power amplifier (2020-01-28),

2. 10181828 - Active cross-band isolation for a transformer-based power amplifier (2019-01-15),

3. 9106198 - High power tunable capacitor (2015-08-11),

4. 8125276 - Sharing of inductor interstage matching in parallel amplification system for wireless communication systems (2012-02-28),

5. 8115555 - Balun function with reference enhancement in single-ended port (2012-02-14),

6. 8106712 - Systems and methods for self-mixing adaptive bias circuit for power amplifier (2012-01-31),

7. 8044540 - Systems and methods for a SPDT switch or SPMT switch with transformer (2011-10-25),

8. 7969246 - Systems and methods for positive and negative feedback of cascode transistors for a power amplifier (2011-06-28),

9. 7961048 - Integrated power amplifiers for use in wireless communication devices (2011-06-14),

10. 7952433 - Power amplifiers with discrete power control (2011-05-31),

11. 7944296 - Low power mode amplification with a transformer output matching and a virtual ground (2011-05-17),

12. 7944293 - Systems and methods for an adaptive bias circuit for a differential power amplifier (2011-05-17),

13. 7936215 - Multi-segment primary and multi-turn secondary transformer for power amplifier systems (2011-05-03),

14. 7880547 - Systems and methods for power amplifiers with voltage boosting multi-primary transformers (2011-02-01),

15. 7768353 - Systems and methods for switching mode power amplifier control (2010-08-03),

Title: Innovations of Kyu Hwan An: A Pioneer in Radio Frequency Systems

Introduction

Kyu Hwan An, based in Dunwoody, GA, is a prominent inventor recognized for his significant contributions to the field of radio frequency (RF) systems. With a remarkable portfolio of 20 patents, An has made strides in enhancing the performance and efficiency of power amplifiers used in various applications.

Latest Patents

One of his latest innovations includes the "Active cross-band isolation for a transformer-based power amplifier." This invention describes embodiments of RF systems that feature multiple power amplifiers equipped with primary and secondary windings. Each power amplifier is designed to handle signals from different frequency bands. Notably, the primary winding of one amplifier can be detuned while another operates in transmit mode, effectively reducing or eliminating power coupling from the transmitter. This inventive approach contributes significantly to improving the reliability and efficacy of RF systems.

Career Highlights

Kyu Hwan An has held key positions at notable companies such as Samsung Electro-Mechanics Co., Ltd. and Georgia Tech Research Corporation. His work at these institutions has allowed him to hone his expertise in RF technology and drive innovation in his field.

Collaborations

Throughout his career, An has collaborated with other talented professionals, including Chang-Ho Lee and Dong Ho Lee. These partnerships have facilitated the development of groundbreaking technologies and have enriched the innovation landscape within their respective domains.

Conclusion

Kyu Hwan An's impressive body of work signifies his dedication to advancing radio frequency technology. With numerous patents and impactful collaborations, he continues to inspire innovation in his field, paving the way for future advancements in power amplifier systems.

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