Accession Number : AD0437141


Title :   RESEARCH ON MICROWAVE WINDOW MULTIPACTOR AND ITS INHIBITION


Descriptive Note : Quarterly progress rept. no. 6, 1 Oct-31 Dec 1963


Corporate Author : EITEL-MCCULLOUGH INC SAN CARLOS CA


Personal Author(s) : Hayes, Raymond


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/437141.pdf


Report Date : 31 Dec 1963


Pagination or Media Count : 103


Abstract : Multipactor discharges at beryllia and alumina windows were suppressed by both sputtered titanium suboxide coatings and evaporated titanium coatings. Tentative thickness limits in terms of sputtering current and time were established for titanium monoxide coatings sputtered in argon. A range of coatings sputtered in mercury were satisfactory but thickness limits have not been determined. Lighter coatings will suppress multipactor only after a period of operation. Coatings have been tested at 2700/Mc/s up to equivalent transmitted powers of 40 Mw peak and 320 kW average without failure. Power has been limited by arcing at the metal-dielectric seal rather than by multipactor discharges.


Descriptors :   *MICROWAVE EQUIPMENT , ARGON , EVAPORATION , MERCURY , OXIDES , SPUTTERING , TITANIUM , WINDOWS


Subject Categories : Radio Communications


Distribution Statement : APPROVED FOR PUBLIC RELEASE