This inventor holds 2 USPTO granted patents. Top assignee: City University of Hong Kong. Active years: 2011.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2011
Title: Innovations of Kwok Wai Lau in Microwave Power Amplifiers
Introduction
Kwok Wai Lau is a prominent inventor based in Hong Kong, CN. He has made significant contributions to the field of microwave power amplifiers, holding a total of 2 patents. His work focuses on enhancing power efficiency and improving linearity in microwave applications.
Latest Patents
One of his latest patents is titled "Average power efficiency enhancement and linearity improvement of microwave power amplifiers." This invention introduces a biasing circuit that provides low distortion and high efficiency operation of a microwave power amplifier. The circuit utilizes the nonlinear rectified current of a microwave diode or transistor for self-adaptive biasing of the amplifying transistor. This innovative approach reduces DC bias power during low-power operation while increasing it during high-power operation. Additionally, it dynamically manipulates intermodulation distortion, enhancing average power efficiency and improving the linearity of the input-output characteristic.
Another notable patent is "Wideband linearization and adaptive power management for microwave power amplifiers." This invention features a power amplifier that includes a bipolar transistor and a self-adaptive bias network. The network is designed to suppress low frequency even-order intermodulation components and stabilizes the DC bias voltage. This ensures a constant base-emitter voltage and increases DC base current with higher input power, particularly when operating within the nonlinear region.
Career Highlights
Kwok Wai Lau is affiliated with the City University of Hong Kong, where he continues to advance research in microwave technology. His work has garnered attention for its practical applications in enhancing the performance of microwave power amplifiers.
Collaborations
He has collaborated with notable colleagues such as Quan Xue and Wing Shing Chan, contributing to the innovative research environment at the university.
Conclusion
Kwok Wai Lau's contributions to microwave power amplifier technology demonstrate his commitment to innovation and excellence in engineering. His patents reflect a deep understanding of the complexities involved in enhancing power efficiency and linearity, making significant strides in the field.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile