The high-power s-band feed subsystem for the Advanced Photon Source injector test stand

Abstract

The RF subsystem for the Advanced Photon Source injector test stand is a totally passive system. The waveguide variable power dividers and phase shifters, which are pressurized with SF/sub 6/, are used to provide three high-power ports that are independently adjustable in phase and amplitude while maintaining negligible differential phase jitter. Either three independent devices or a device requiring three inputs can be tested at any one time.