A 3D Printed Beam-Shaping Transmissive Metasurface for Antenna-in-Package Applications

This article reveals a 3D printed broadband metasurface that enhances the measured effective isotropic radiated power (EIRP) when integrated into a millimeter-wave (mm-Wave) transceiver with antenna-in-package (AiP) solution. Pancharatnam-Berry (P-B) phase shift approach and phase delay lines will be involved simultaneously to achieve beam-shaping performance. An antenna-circuit-antenna (ACA) configuration is applied to achieve a flexible phase transition between the transmitting and receiving antenna elements for dynamic beam-shaping and broadband radiation. The proposed metasurface operates at 25 GHz-30 GHz, with a peak transmission efficiency of 72%.