HIGH POWER R-F WINDOW STUDY PROGRAM
Abstract
A study was made of the possibilities of wave guide window synthesis by computer solution of a multiple complex matrice equation. A 100-% bubble- free fused quartz window was fabricated and in the ring resonator. This window became visibly red hot at 190 kw CW, which is about twice the power level at which failure occurred in several previously tested windows made of a poorer grade of quartz. Another difference in this test was that the quartz itself did not deform. One single-disc, 0 degree-cut synthetic sapphire window assembly was completed. The broadbanding of half wavelength block windows was examined and a complete example of the process for a beryllium oxide window is demonstrated. Techniques for mode shifting and impedance matching are discussed. One sample of a BeO block window was tested, without failure, to 222 kw CW in the ring resonator. Several half-wavelength block windows fabricated, using AL300, AL399 and AL995 ceramics, were tested to failure in the ring resonator. The failure in all cases is a vertical crack across the center of the face of the block and perpendicular to the broadwall. The power level at which these failures occurred was approximately 100 kw.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1963
- Accession Number
- AD0406478
Entities
People
- Floyd Johnson