Accession Number : AD0777602

Title :   Trapatt Amplifier for Phased Arrays.

Descriptive Note : Final rept. 1 Feb-31 Mar 73,

Corporate Author : SPERRY RESEARCH CENTER SUDBURY MASS

Personal Author(s) : Grace,M. I. ; Potter,C. N. ; Kroger,H. ; Pratt,H. J.

Report Date : FEB 1974

Pagination or Media Count : 85

Abstract : The report describes the design and development of a wideband TRAPATT amplifier in a microstrip configuration, and is also concerned with the progress being made on the development of cw devices in a ring geometry. Particular emphasis is placed on describing surface degradation effects observed in large periphery devices and the approaches used toward solving these difficulties. An amplifier broadbanding technique based on a lumped element technique is described and preliminary experimental results are presented. A section describing the use of small area diodes as a means of lowering input power thresholds for a TRAPATT amplifier is included. Improvements in amplifier efficiency through the use of a new bias network which permits second harmonic tuning is also described. Finally, a summary of a generalized TRAPATT amplifier design technique is presented. (Author)

Descriptors :   *Microwave amplifiers, Avalanche diodes, Phased arrays, Broadband, Strip transmission lines

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE