Trapatt Amplifier for Phased Arrays.
Final rept. 1 Feb-31 Mar 73,
SPERRY RESEARCH CENTER SUDBURY MASS
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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
- Electrical and Electronic Equipment