A high-precision terahertz retrodirective antenna array with navigation signal at a different frequency
Zhong-bo ZHU1,2, Wei-dong HU1(), Tao QIN3, Sheng LI2, Xiao-jun LI2, Jiang-jie ZENG3, Xian-qi LIN3, Leo P. LIGTHART1
1. Beijing Key Laboratory of Millimeter Wave and Terahertz Technology, Beijing Institute of Technology, Beijing 100081, China 2. National Key Laboratory of Science and Technology on Space Microwave, China Academy of Space Technology, Xi’an 710100, China 3. School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Future communications will provide higher transmission rates and higher operating frequencies. In addition, agile beam tracking will be an inevitable trend in technology development. The terahertz retrodirective antenna array proposed and discussed in this paper can be a better solution for agile beam tracking. The array receives a 40-GHz navigation signal and accurately retransmits a 120-GHz beam in the direction of the arrival wave. Simulation results indicate that the proposed array with a stacked sandwich structure has realized the tracking of the received wave. The scanning radiation pattern shows that the array gain is 23.87 dB at 19.9° when the incident angle is 20° with a relative error of only 0.5%, meaning that there is a lateral error of only 8.7 m at a transmission distance of 5 km.
朱忠博, 胡伟东, 秦涛, 李升, 李小军, 曾姜杰, 林先其, LIGTHART Leo P.. 高精度太赫兹异频回溯天线阵列[J]. Frontiers of Information Technology & Electronic Engineering, 2020, 21(3): 377-383.
Zhong-bo ZHU, Wei-dong HU, Tao QIN, Sheng LI, Xiao-jun LI, Jiang-jie ZENG, Xian-qi LIN, Leo P. LIGTHART. A high-precision terahertz retrodirective antenna array with navigation signal at a different frequency. Front. Inform. Technol. Electron. Eng, 2020, 21(3): 377-383.
