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Optically-Controlled Tunable Microwave and Millimeter-Wave Devices for Adaptive Wireless Communication

Dr. LiuPrincipal Investigator: 

Dr. Liu, Department of Electrical Engineering. This project also involves Dr. Fay, Department of Electrical Engineering, and Dr. Cheng from the Department of Electrical and Computer Engineering at Oregon State University.

Project Summary:

We will investigate and develop a novel approach based on high-performance optical spatial modulation using free carriers in semiconductors for efficiently generating tunable and reconfigurable components that could not be realized using conventional approaches. Both quasi-optical devices (e.g., mesh-filters, Fresnel-zone-plate antennas) and waveguide architectures (i.e., tunable photo-induced electromagnetic bandgap (EBG) structures for filters, photo-induced substrate-integrated waveguides (SIWs)) will be studied and developed. A prototype adaptive wireless communication link at 200 GHz or higher will also be demonstrated.

Student's Role: 

The proposed research contains the process of constrained co-design of the various elements that offers a number of avenues for including less experienced researchers (e.g., undergraduates) in the work by having them work on a slice of the larger problems. Specifically, the undergraduate(s) will work with a team of researchers including the PIs and graduate students on designing, fabricating and characterizing those optically-controlled tunable/reconfigurable devices as well as demonstrating prototype wireless links.