Integrated photonic antenna array

摘要

Photonic beam forming networks benefit from the broad bandwidth and low attenuation of optical waveguides. The performance of this approach is maximized by placing the opto-electrical conversion (photodiode) directly at the feeding point of the antenna. In this work, such a setup that combines the optical true time delay (TTD) technique and photonic feeding is designed and demonstrated with a four element array of Vivaldi antennas working in the broad frequency range from 0.5-2.5 GHz. Measurements are presented and discussed.