NOISE CHARACTERISTICS OF HIGH-POWER MICROWAVE AMPLIFIERS,
Abstract
Space-charge wave analysis of noise in highpower traveling-wave amplifiers and Crestatrons is developed for large C values under the assumptions of small-amplitude signals and singlevelocity models. The coupled-mode analysis is used to study noise propagation between the electron gun anode and the r-f circuit on a two-wave basis. The results of this analysis suggest various noise reduction tehcniques appropriate for the Crestatron of the predictions is excellent. Several Crestarons were constructed in which noise figures approached theoretical values of 6 to 10 db. A hybrid device incorporating a Crestatron, a TWA, and a tapered output circuit is suggested in order to utilize the low-noise capabilities of the Crestaron in a high-power, high-gain amplifier. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1975
- Accession Number
- AD0424434
Entities
People
- H. W. Krage Jr.
- Oct 63
Organizations
- University of Michigan