To break limitation in the bandwidth of traditional SB-TWTs at high power of its operation, an innovative Double-Ridge Staggered Vane (DRSV) Structure is proposed and verified as an effective solution ...

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 ...