Low-loss and Wideband Dielectric Resonator Antenna on System-in-Package for 60GHz Radar Applications

Abstract—This paper presents a low-loss, wideband dielectric resonator antenna (DRA) integrated on a system-in-package (SiP) for high-performance 60 GHz radar modules. Conventional patch-based radars suffer from conductive loss and narrow bandwidth, whereas the proposed SiP-based DRA achieves wideband, low-loss operation and high gain through low-cost fabrication. The DRA and radio-frequency integrated circuit (RFIC) are implemented on the same plane without degrading multi-input–multi-output (MIMO) performance. A resonant patch layer is added to improve impedance matching by balancing inductive and capacitive energies. The design exhibits reflection below −10 dB from 57–64 GHz and mutual coupling under −31 dB. Measurements confirm symmetric radiation and ~4.5 dBi gain, validating wide bandwidth and wide field-of-view (FoV).