Zhiwen Zhu

Title: Zhiwen Zhu: Innovator in Multi-Carrier Amplifier Linearization

Introduction

Zhiwen Zhu is a notable inventor based in Kanata, Canada. He has made significant contributions to the field of amplifier technology, particularly in the area of multi-carrier signals. His innovative approach has led to the development of a unique patent that addresses challenges in linearizing amplifiers.

Latest Patents

Zhiwen Zhu holds a patent for a "Multi-carrier amplifier linearization system and method." This invention relates to a method and circuit designed for linearizing amplifiers and other nonlinear circuits used for multi-carrier signals. The process involves sampling the output signal from the amplifier and computing a correlation matrix of size N×N from the sampled signal, where N exceeds the number of multiplexed carriers in the signal. An estimation of the signal-to-distortion ratio (SDR) is then made based on the ratio of one or more largest to one or more smallest eigenvalues of the correlation matrix. The signal entering the amplifier is pre-distorted to maximize the SDR, enhancing the performance of the amplifier.

Career Highlights

Zhiwen Zhu is associated with Her Majesty the Queen in Right of Canada as represented by the Minister of Industry through the Communications Research Centre Canada. His work has been instrumental in advancing technologies that improve communication systems and signal processing.

Collaborations

Zhiwen has collaborated with notable colleagues, including Xinping Huang and Mario Caron. Their combined expertise has contributed to the success of various projects within the Communications Research Centre.

Conclusion

Zhiwen Zhu's innovative work in amplifier linearization showcases his commitment to enhancing communication technologies. His contributions are vital in addressing the complexities of multi-carrier signals, making a significant impact in the field.