Chih-Wen Wu

Title: Innovations by Chih-Wen Wu in RF Power Amplification

Introduction

Chih-Wen Wu is a notable inventor based in Hsinchu County, Taiwan. He has made significant contributions to the field of radio frequency (RF) power amplification, holding three patents that enhance the efficiency and functionality of RF power amplifiers.

Latest Patents

One of his latest patents is a bias circuit for supplying a bias current to an RF power amplifier. This innovative circuit generates a bias current that can be configured in multiple modes through transistor switches controlled by mode control signals. This allows for the adjustment of the bias current according to the required power level of the transmitting RF signals. Additionally, the circuit includes a feature that allows the bias current to be turned off by another transistor switch controlled by a power control signal, which helps save power when the RF power amplifier is not in use. Another significant patent by Wu is a bias circuit based on BiFET technology for supplying a bias current to an RF power amplifier. This circuit utilizes a field-effect transistor (FET) controlled by a logic control signal, such as a CMOS logic control signal, to manage the bias current supplied to the RF power amplifier.

Career Highlights

Chih-Wen Wu is currently employed at Rafael Microelectronics, Inc., where he continues to innovate in the field of RF technology. His work has been instrumental in advancing the capabilities of RF power amplifiers, making them more efficient and adaptable to various power levels.

Collaborations

He collaborates with talented coworkers, including Po Chang Lin and Chun Hua Tseng, who contribute to the innovative environment at Rafael Microelectronics, Inc.

Conclusion

Chih-Wen Wu's contributions to RF power amplification through his patents demonstrate his expertise and commitment to innovation in the field. His work not only enhances the performance of RF power amplifiers but also paves the way for future advancements in technology.