INVESTIGATIONS OF BROADBAND FERROMAGNETIC POWER LIMITERS AND EXPANDERS AS DUPLEXING ELEMENTS FOR MICROWAVE SYSTEMS.
Abstract
A traveling-wave limiter has been designed. A single-crystal YIG slab was placed in a dielectric-loaded waveguide, and the coupling between the waveguide mode and n=1 surface magnetostatic mode was calculated. The length of the YIG slab needed for converting electromagnetic energy into magnetostatic energy over a fairly broad frequency range was calculated. Experiments are being conducted to test the possibility of using this device as the broadband, low-level microwave limiter. The performance of an expander using a ferrite sphere inside a helix, has been evaluated. The loss inside the helix structure has been identified. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1967
- Accession Number
- AD0816274
Entities
People
- F. A. Olson
- Peter Young