3D-printed flexible antenna arrays achieve real-time signal stability

Researchers at Washington State University (WSU) have developed a novel 3D-printed flexible antenna array designed to maintain stable wireless signals in dynamic conditions such as bending, movement, and environmental changes. This innovation addresses a critical challenge in flexible electronics, where physical deformation often causes signal degradation. The lightweight, scalable antenna arrays can be integrated directly into structures like drone wings, aircraft surfaces, and wearable textiles, enabling high-speed, reliable communication in applications ranging from smart fabrics to aerospace. The antennas are printed using a copper nanoparticle-based ink developed in collaboration with the University of Maryland and Boeing, which enhances performance for high-end communication circuits. A key advancement in this technology is the integration of a specialized chip-sized processor that corrects signal errors in real time caused by material deformities and vibrations. This processor enables robust beam stabilization during movement, a capability not previously achieved in flexible antenna systems. Testing demonstrated that the antennas maintain stable performance under bending, humidity, temperature fluctuations, and salt exposure, while operating at