STUDY AND INVESTIGATION LEADING TO THE DESIGN OF BROADBAND HIGH POWER KLYSTRON AMPLIFIERS
Abstract
The objective of this program has been to investigate rf interaction circuits and stagger-tuning techniques leading to at least a fifty percent improvement in the 1 db bandwidth of high-power klystrons over the current state-of-the-art. In this report, the findings of the final phase of this contract are presented. The major part of the effort during this final reporting period included: the completion of large-signal efficiency calculations across the band assuming a filter-loaded output resonator, the final theoretical design of the buncher section, theoretical stability calculations on the filter-loaded output resonator, and cold test measurements on a filter-loaded extended- interaction resonator. The measured interaction impedance obtained with the cold-test filter-loaded output resonator closely approximated the impedance assumed in the theoretical efficiency calculations. The final buncher section, designed with the aid of the small-signal computer program, yielded a nearly constant rf drive current to the output resonator, as was assumed in the large- signal efficiency calculations. The small-signal analysis indicated that conventional single-gap resonators are to be preferred over extended-interaction resonators in the klystron buncher section at the high power level considered in this study.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1966
- Accession Number
- AD0804956
Entities
People
- Darrell Robinson
- Erling Lien