Accession Number : AD0429472


Title :   STUDY OF INTERACTION STRUCTURES LEADING TO DEVELOPMENT OF X-BAND CROSSED-FIELD AMPLIFIER,


Descriptive Note : Quarterly progress rept. no. 2, 28 Sep-28 Dec 63.


Corporate Author : WARNECKE ELECTRON TUBES INC DES PLAINES ILL


Report Date : 28 Dec 1963


Pagination or Media Count : 33


Abstract : Continuing progress toward development of a 2 kilowatt CW crossed-field amplifier in X-band, the following studies were made during the second quarter of this project. (1) Study of the attenuation characteristics of a meander lane mounted on ceramic; (2) Cold measurements on full-scale lines in S-band; (3) Study of appropriate ceramics for use in X-band lines. Since the X-band lines will possess extremely small dimensions, the surface state of the ceramic will play an important part in the circuit precision achievable. At the present time sapphire has emerged as the most promising ceramic for X-band use. Studies to determine the suitability of sapphire, from the heat conductivity standpoint, have shown that it should be possible to dissipate the excess heat with a structure of the size envisioned for the tube; (4) Study of the technology for producing ceramic delay lines; (5) Measurement of the heat conductivity of a metal-ceramic sandwich. (Author)


Descriptors :   *DELAY LINES , *X BAND , MICROWAVE AMPLIFIERS , MICROWAVE AMPLIFIERS , HEAT , SAPPHIRE , ATTENUATION , ALUMINATES , BRAZING , COPPER


Distribution Statement : APPROVED FOR PUBLIC RELEASE