A STUDY OF THE SOOHOO-TYPE FERRITE CUTOFF SWITCH.
Abstract
The characteristics of the Soohoo-type cutoff switch (IRE Trans. Microwave Theory Tech., Vol. MTT-7, no. 3, July 1959, p. 332-6 and 334-5) have been measured at X band. Two types of switch configuratiion were employed; in one, a single ferrite slab was placed against a waveguide sidewall, and in the other two ferrite slabs were placed against opposite sidewalls. The switch is made to operate between an 'on state' (or propagation state) and an 'off state' (or reflection state) by application of a transverse magnetic field to the ferrite. This action reduces the effective waveguide width and causes cutoff. Low-power-level switching characteristics were studied as a function of switch geometry, and a group of switches meeting minimal specifications were selected for study at high-power level. The effect of varying waveguide width, the variety of ferrite used, and the width of the ferrite slab on nonlinear loss were studied at highpeak-power level as a function of applied magnetic field. Some techniques which tended to reduce nonlinear loss were noted. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 15, 1965
- Accession Number
- AD0612514
Entities
People
- W. H. Mendenhall Jr.
Organizations
- United States Naval Research Laboratory