This inventor holds 1 USPTO granted patent. Top assignee: Southeast University. Active years: 2015.
Company Filing History:
Years Active: 2015
Title: Innovations by Junfeng Wen in Frequency Mixing Technology
Introduction
Junfeng Wen is a notable inventor based in Nanjing, China. He has made significant contributions to the field of frequency mixing technology, particularly through his innovative patent. His work is characterized by a focus on enhancing transconductance in passive frequency mixers, which has implications for various applications in electronics.
Latest Patents
Junfeng Wen holds a patent for a "Transconductance-enhancing passive frequency mixer." This invention comprises a transconductance amplification stage, a frequency mixing stage, and an output transresistance amplifier. The transconductance amplification stage features a pre-amplification transconductance-enhancing structure, which greatly enhances transconductance. This allows for achieving the same transconductance value at a lower bias current. The frequency mixing stage modulates a radio-frequency current to generate an output mid-frequency current signal. This signal is then processed through the transresistance amplifier to form a voltage output, ultimately resulting in a mid-frequency voltage signal. The transresistance amplifier also incorporates a transconductance-enhancing structure, which reduces input impedance and improves current utilization efficiency and port isolation. The frequency mixer is noted for its low power consumption, high conversion gain, and excellent port isolation.
Career Highlights
Junfeng Wen is affiliated with Southeast University, where he continues to advance his research and development in electronic technologies. His work has garnered attention for its innovative approach to frequency mixing, which is crucial for various electronic applications.
Collaborations
Junfeng Wen collaborates with esteemed colleagues such as Jianhui Wu and Xiao Shi. Their combined expertise contributes to the advancement of technology in their field.
Conclusion
Junfeng Wen's contributions to the field of frequency mixing technology exemplify the innovative spirit of modern inventors. His patent on the transconductance-enhancing passive frequency mixer showcases his commitment to improving electronic efficiency and performance.