INTEGRATED SOLID STATE TIME DELAY AMPLIFIER.
Abstract
This report describes the results achieved as part of a research and development program that will lead to devices that provide a dispersionless, lossless, electronically controllable real time delay of microwave signals. The delay mechanism involves the conversion of the electromagnetic energy to be delayed into magnetoelastic energy, since this is the only method known to date which can provide dispersionless variable delay in a relatively small package. The shape of the internal magnetic field required to obtain dispersionless variable delay and the shape of the internal magnetic field of a YIG rod inserted in polycrystalline YIG and nickel ferrite sleeves has been computed in order to match the two as closely as possible. The problem of focusing and defocusing of spin waves has been investigated, and it was found that the field profile for dispersionless delay is focusing, although it will result in a large insertion loss. As a result of these studies, a breadboard model of a dispersionless, electronically variable delay line has been constructed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1968
- Accession Number
- AD0841548
Entities
People
- Herman Van De Vaart
Organizations
- Sperry Corporation