Researchers from Washington State University have created chip-sized processors and 3D printed antenna arrays that hold potential for flexible and wearable wireless systems, as well as advancements in electronic communications across various industries including automotive, aviation, and space.

Utilizing 3D printing technology and an ink composed of copper nanoparticles, the team developed flexible antenna arrays that maintain stability even under bending, high humidity, temperature changes, and exposure to salt.

Sreeni Poolakkal, a PhD student in the School of Electrical Engineering and Computer Science at WSU, noted that this proof-of-concept prototype could facilitate the future development of smart textiles, communication systems for drones and aircraft, edge sensing applications, and other dynamic fields that demand robust and adaptable wireless systems.

In addition, the researchers designed a processor chip capable of correcting erroneous signals from the antenna in real time. These lightweight and flexible arrays are energy-efficient and can be scaled easily, with each processor chip functioning independently on its respective tile. The project received funding from the Air Force Research Laboratory, Washington Research Foundation, and M.J. Murdock Charitable Trust Foundation.