Hefei University of Technology has made new progress in the field of researched microwave passive device research

Recently, the team of nano -microwave and nano -power technology laboratory team in Hefei University of Technology has once again made important progress in the research direction of thermal controlled microwave passive device. The relevant research results "Redefinable Planar Microwa Ve Passive Electronics Enabled by Thermal Controlled VO2 /CU Hybrid Matrix "published online in the iScience journal of Cell's comprehensive sub -journal.

Traditional microwave links are composed of independent microwave devices. The hardware structure of these microwave devices cannot be changed. Its functions have been considered unchanged for a long time, which means that the function of traditional microwave links cannot be redefined. In order to meet different application scenarios, multiple sets of microwave links are usually designed. If you can adjust the function of the microwave hardware in real time according to the dynamic application requirements of the system, and realize the redefining of the functional level of the device, you can reconstruct the microwave link, which significantly improves the renewal rate of microwave hardware and reduce The quantity meets the requirements of multi -scenario applications, miniaturization and lightweight.

The results of this research show a 2 × 2 array device based on the film based on thermal phase transformation (VO2) film, and the microwave function can be repaid. In this work, the conductivity of the VO2 film can achieve 1000 times the change. The variation of the VO2 microstructure switch is adjusted through the thermal control VO2 microstrip wire switch. In addition, some rectangular copper stickers that use VO2 film can flexibly configure the structure to control the area where the current distribution is controlled, thereby achieving antenna array, frequency reconstruction band pass filter, and reconstructed antenna and filter combination performance. Mixed devices. Compared with the concept of reconstruction in the traditional sense, the functions proposed by this study can be expanded in general. It is more concerned about the essence of passive devices. Quickly control.

The work has obtained the National Natural Science Foundation of China, and the national key research and development plan key projects. He is a cooperative unit, Professor Sang Lei of Microelectronics Academy as the first author of the paper, and Professor Huang Wen as the author of the dissertation. (Correspondent: Hefei University of Technology Li Construction)

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