Chih-Chieh Cheng

Title: Innovator Spotlight: Chih-Chieh Cheng

Introduction:

Chih-Chieh Cheng is a prolific inventor based in Poway, California, with an impressive portfolio of 20 patents. His work primarily revolves around advancements in radio frequency (RF) technologies, focusing on solutions that enhance performance and efficiency in communication systems.

Latest Patents:

Chih-Chieh Cheng's recent innovations include adaptive tuning networks and power detectors designed to address critical challenges in RF systems. One notable patent is the "Adaptive Tuning Networks with Direct Mapped Multiple Channel Filter Tuning." This invention presents a flexible multi-path RF adaptive tuning network switch architecture that counters impedance mismatch conditions, particularly in Carrier Aggregation radio systems. It integrates a digitally-controlled tunable matching network with a multi-path RF switch, enabling adaptive impedance matching for various RF band filters. Additionally, it offers enhanced options like digitally-controlled filter pre-match networks and phase matching networks to further improve impedance matching across bands.

Another significant patent is the "Power Detector with Wide Dynamic Range." This invention introduces a power detector featuring a linear detector and a voltage-to-current-to-voltage converter, optimized through a logarithmic current-to-voltage conversion method. The design ensures a linear-in-dB response while preserving linearity throughout the signal path. It addresses temperature sensitivity and error sources by utilizing temperature-compensating methods, ultimately providing a reliable wide dynamic range for power detection.

Career Highlights:

Throughout his career, Chih-Chieh Cheng has made substantial contributions to the field of RF engineering. He has held positions in renowned companies such as Psemi Corporation and Peregrine Semiconductor Corporation, demonstrating his expertise and influence in the domain of semiconductor technology.

Collaborations:

Cheng has collaborated with notable professionals in the industry, including Tero Tapio Ranta and Kevin Roberts. These collaborations have likely contributed to the innovative solutions that emerge from his work, highlighting the importance of teamwork in the field of technology and inventions.

Conclusion:

Chih-Chieh Cheng’s contributions to RF technology through his innovative patents signify the crucial role inventors play in advancing communication systems. His work not only addresses existing challenges but also paves the way for future developments in the industry. As technology continues to evolve, the impact of inventors like Cheng will undoubtedly remain significant in shaping the future of communication and RF systems.