Metamaterial Based Compact Patch Antenna Array for Antenna-in- Package Solutions in Frequency Handover Applications

A dual band compact antenna array is designed on an ultra-low loss and smooth surface roughness dual-layered fused silica substrate to simultaneously operate in both a 5G new radio (5G-NR) of 28 GHz and an loT band of 24GHz, for a frequency handover application. The proposed antenna array operates based on coupled resonance theory. The resonant frequencies are the result of resonant coupling between closely located meanderline complementary split ring resonators (CSRRs). A 2 × 2 array is fabricated on a 350μm/180μm double layer fused silica substrate and the measurement results agree well with simulation results.