A rack-mounted natural-cooling RMN uninterruptible power supply UPS having ultra-width-efficient load range, 96% efficiency from 10% load, is proposed. It is based on paralleling multiple multilevel ...

An FET-sized 1-18-GHz monolithic active magic T (180 degrees hybrid) is proposed. It unifies two different dividers, electrically isolated from each other, in a GaAs FET electrode configuration; this ...