5G mmWave Patch Antenna on Multi-layered Alumina Ribbon Ceramic Substrates

The thin, flexible, fully dense Alumina Ribbon Ceramic (ARC) fabricated by Corning's proprietary process of continuously sintered ceramic (CSC) is used as a substrate for the patch antenna and transmission line for 5G mmWave wireless communication systems. The microstrip line on the 40um thick ARC shows a loss of about 1.6dB/cm at 28GHz. The compact (0.2λ₀ × 0.2λ₀), low profile and multilayered patch antenna shows a resonant frequency of 29.35GHz with 2.81dBi peak gain, which could be used for 5G mmWave mobile applications.