The AD300D from Rogers Corporation are ceramic-filled, glass-reinforced, PTFE based laminates that operate up to 10 GHz. They have a low dielectric constant value of 2.94 and tight tolerance of ±0.05 which enables high antenna efficiency and large bandwidth. They provide low loss performance (0.0021 at 10 GHz), a very good passive intermodulation response (-159 dBc at 0.030” thickness), and good circuit process ability required for mobile infrastructure microstrip antenna applications. These laminates have low moisture absorption (0.04%), low z-axis CTE (98 ppm/°C), high copper peel strength (18.3 pli), and good dimensional and thermal stability. They are compatible with the processing used for standard PTFE based printed circuit board substrates.
