Crystal-Controlled Projectile Telemetry Transmitter.
Abstract
This final report describes the task of redesigning a crystal-controlled projectile telemetering transmitter operating at L-band frequencies. The purpose of the transmitter is for deployment in artillery projectiles to telemeter various performance attributes. Prior efforts on this task included (1) a basic circuit design development by Harry Diamond Laboratories to demonstrate electrical circuit feasibility, excluding packaging ruggedization considerations, and (2) a production engineering program by Motorola's Government Electronics Division. The approach taken in this effort was based upon the previous work and development of solutions to the complex problems encountered before. These included the combined performance of the oscillator stability, frequency multiplication, microwave stripline filtering, and rf power amplification in a small volume. In addition, the design was to be inexpensive and easily reproducible. A design was developed that proved to be adequate in satisfying the stability requirements and surviving the high acceleration forces of the artillery environment. The electrical performance problem of the microwave stripline filter was not completely solved, and the proximity effects and resonant cavity responses at the transmitter frequency were determined to be the technical limitations to this design approach. Alternate design approaches have been proposed for solving this serious producibility problem. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1979
- Accession Number
- ADA078214
Entities
People
- Daniel D. Zimmerman
- Robert E. Hicks
- William C. Trimble
- William D. Lipps
Organizations
- Johns Hopkins University