Dr. RISHO Series Part 2 to teach about high-speed low-loss materials. RISHO’s high-speed low-loss materials are made of PPE which has lower Dk and lower Df and excellent electric properties as well as superior tolerance of thickness and good processability. These materials are used for telecom (Server, Router, Switch), antenna (Basestation Antenna, 5G Antenna, GPS Antenna, etc.) and mmWave radar (ADAS).