APPLICATION OF NEW TECHNIQUES TO LOW-NOISE RECEPTION
Abstract
Research was concerned with the study of lownoise parametric amplifiers. Study was divided into 2 concurrent tasks: (1) an investigation of electron beam parametric amplifiers, and (2) an investigation of solid-state parametric amplifiers. Summaries are presented of studies on both space-charge-wave and cyclotron-wave devices. Some new and powerful analytical techniques were developed for the study of the noise behavior of complex systems with degenerate electron-beam modes. Research is reported on a circuit-wave amplifier, a generalized coupled mode theory, and an experimental program on a symmetric contraflow coupler. Results of work on a single-diode, solid-state parametric amplifiers are described. The measured response of two degenerate, parametric amplifiers operated in a balanced configuration with a 3-db coupler is shown. Two balanced amplifiers of this type were operated in cascade with contiguous operating bands in order to achieve extremely wide bandwidth. The analysis and design of traveling-wave parametric amplifiers utilizing both forward- and backwardwave interactions is also described. An experimental amplifier using eight varactors was built and tested. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1961
- Accession Number
- AD0257077
Entities
People
- C.w. Barnes
- G.l. Matthaei
Organizations
- SRI International