STUDY OF PULSED RADIATION EFFECTS ON MICROWAVE FERRITE DUPLEXERS.
Abstract
A summary of data collected to date on the operating characteristics of active microwave duplexing devices in pulsed nuclear radiation fields is presented. Two series of experiments have been performed at the Sandia Pulsed Reactor Facility (SPRF) where the operating characteristics of C-band coaxial ferrite Y-junction circulators, C-band gyromagnetic coupling limiters, C-band coaxial internal magnet isolators, and various types cable have been evaluated. Active tests were performed in the frequency band of 5.4 - 5.9 Gc for CW microwave power at the component of approximately 100 milliwatts. During the radiation burst, the average transient increase in the insertion loss of the circulator is less than 0.05 db, for the limiter less than 0.1 db, and for the isolator less than 0.15 db. Under the test conditions involved, these transient effects are considered to be very minor. Many signal cables were evaluated. Of those tested, the RG-5B/U solid dielectric filled coaxial cable was considered best for the microwave signal cables. Large transient effects were observed in air filled coaxial and rectangular waveguides. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1963
- Accession Number
- AD0416663
Entities
People
- G. R. Harrison
- J. P. Scheiwe