Jian Cao

Title: Jian Cao - Innovator in Terahertz Measurement Technologies

Introduction

Jian Cao is a prominent inventor based in Shijiazhuang, China. He has made significant contributions to the field of terahertz on-wafer measurement, holding a total of 2 patents. His work focuses on improving the accuracy of high-frequency measurements, which is crucial for various technological applications.

Latest Patents

Cao's latest patents include an innovative on-wafer S-parameter calibration method. This method is applicable to the technical field of terahertz on-wafer measurement and provides a new approach to S-parameter calibration. The process involves performing two-port calibration on a waveguide end face when a probe is not connected to a test system. It also includes one-port calibration on each of the two probe end faces when the probe is connected. Additionally, it entails fabricating a crosstalk calibration standard equal to the device under test in length on a substrate of the device under test. This method allows for accurate characterization and correction of crosstalk errors, thereby enhancing the precision of high-frequency on-wafer S-parameter measurements.

Another notable patent is the calibration method, system, and device of on-wafer S-parameter for a vector network analyzer. This disclosure outlines a method that includes acquiring parameters from crosstalk calibration pieces measured by the vector network analyzer. It also details how to obtain main and secondary crosstalk error terms for calibrating the vector network analyzer, which is essential for ensuring accurate measurements.

Career Highlights

Throughout his career, Jian Cao has worked with esteemed organizations, including the 13th Research Institute of China Electronics and the 13th Research Institute of China Electronics Technology Group Corporation. His experience in these institutions has allowed him to develop and refine his innovative techniques in terahertz measurement.

Collaborations

Cao has collaborated with notable colleagues such as Aihua Wu and Chen Liu. Their combined expertise has contributed to advancements in the field of terahertz technology.

Conclusion

Jian Cao's contributions to terahertz measurement technologies through his patents and collaborations highlight his role as an influential inventor. His work continues to pave the way for advancements in high-frequency measurement accuracy.