Accession Number : AD0824435

Title :   SOLID-STATE PHASED ARRAY TRANSMITTER STUDY.

Descriptive Note : Final rept. 22 Jun 66-22 Jun 67,

Corporate Author : TEXAS INSTRUMENTS INC DALLAS

Personal Author(s) : Reinhartsen, David R. ; Tomlinson, J. R. ; Donaldson, William O.

Report Date : NOV 1967

Pagination or Media Count : 212

Abstract : The main areas of consideration are the electronics associated with the production of microwave power for the array, and the maintenance of the electronics. Transmitter parameter ranges are as follows: Frequency 0.1 to 4 GHz; Average Power 200 Kw, 500 KW, 1000 KW; Lifetimes 5, 10, and 20 years. Maintenance studies include failure rate estimation, cost of the electronics, and various maintenance schemes for optimized system operation and minimum maintenance costs. Results indicate that while large solid-state arrays have a higher initial cost, the long term cost of a solid-state array will be lower. Unattended operation and/or 20-year lifetime operation is feasible. Cost and reliability predictions indicate that a solid-state transmitter will be even more feasible in the future. The electronics studies include devices for the generation and amplification of microwave energy, heat dissipation, various block diagrams for the placement of solid-state devices in an array, and the array configuration. Results of the electronics study indicate that (presently) transistors are the best devices for use in a high-power transmitting array, and that the outputs of many of these may be combined to achieve the required power per array module. Frequency multiplication schemes using varactor diodes can be justified within the design criteria only at the extreme high end of the frequency band under consideration. (Author)

Descriptors :   *SEMICONDUCTOR DEVICES), (*RADAR TRANSMITTERS, FEASIBILITY STUDIES, PHASED ARRAYS, TRANSISTORS, MODULES(ELECTRONICS), MICROWAVE EQUIPMENT, SEMICONDUCTOR DIODES, RELIABILITY(ELECTRONICS), MAINTENANCE, COSTS, PHASE SHIFT CIRCUITS.

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE