Company Filing History:
2 out of 2 
2 out of 18,140 
2 out of 143 Years Active: 2025
Title: Longzhu Cai: Innovator in Antenna Technology
Introduction
Longzhu Cai is a prominent inventor based in Beijing, China. He has made significant contributions to the field of antenna technology, holding two patents that showcase his innovative approach to electronic devices.
Latest Patents
Cai's latest patents include an antenna and electronic device, which features a phase shifting unit, a reference electrode layer, and an antenna substrate. The design incorporates at least one phase shifter, with a first transmission structure, a second transmission structure, and a phase shifting structure in between. The reference electrode layer is equipped with multiple openings, while the antenna substrate consists of a first dielectric substrate, a feed structure, and at least one radiation portion. This invention aims to enhance the performance and efficiency of antennas in various applications.
Another notable patent is a phase calibration method and apparatus for phased array antennas. This method involves sequentially calibrating antenna units based on a pre-obtained test voltage set. It includes loading test voltages to the antenna units, acquiring phase and amplitude information, and analyzing microwave signals to obtain calibration response vectors. This innovative approach aims to improve the accuracy and reliability of phased array antennas.
Career Highlights
Longzhu Cai has worked with esteemed organizations such as the Research Institute of Millimeter Wave and Terahertz Technology and BOE Technology Group Co., Ltd. His experience in these institutions has allowed him to develop and refine his expertise in antenna technology.
Collaborations
Cai has collaborated with notable colleagues, including Zhihao Jiang and Fengshuo Wan. Their combined efforts have contributed to advancements in the field of antenna technology.
Conclusion
Longzhu Cai is a distinguished inventor whose work in antenna technology has led to significant innovations. His patents reflect a deep understanding of electronic devices and their applications, positioning him as a key figure in the industry.
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