600 – 900 GHz Frequency Sources with up to 4 mW Output Power based on Flip-Chip Schottky Barrier Diodes Technology

We report a set of three submm-wave sources able to provide > 1 mW typical output power in the 600-900 GHz frequency range. These sources are based on active multiplication chains (AMC), using ACST high power discrete Schottky diode technology. Peak power levels up to 4, 3 and 2 mW are achieved in the 600-700, 700-800 and 800-900 GHz frequency range respectively. These 600-900 GHz sources are based on three base sources covering the 200-300 GHz with an additional tripler stage at the end. All frequency multipliers in these sources are using flip-chip Schottky diodes approach, and no power combining technics are used. Equivalent performance to full MMIC Schottky multipliers is achieved using our discrete diode-based multipliers.