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:

1974-02-01

Pagination or Media Count:

85.0

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