Multiple-beam klystron development at the Naval Research Laboratory

Multiple-beam klystrons (MBKs) are a vacuum electronic amplifier technology that can provide the high power, low-noise, broadband, compact transmitter technology required to meet the needs of modern surveillance radar systems. We present a review of MBK development at the Naval Research Laboratory and the creation of an accurate, simulation-based MBK design methodology. Examples of specific devices include S-band amplifiers generating up to 670 kW peak power with bandwidths up to 13%. We also present examples of potential radar system applications using MBKs.