PARAMETRIC AMPLIFICATION AT SONAR FREQUENCIES (40-100 KC),
Abstract
A literature search and study was conducted to determine the feasibility of a low frequency parametric amplifier for use at frequencies in the 40- to 100-kc range encountered in sonar devices. One model based upon the microwave balanced modulator configuration (Magic-T) was constructed antested. A gain of 24 db at 40 kc was achieved with a minimum detectable signal of -133 db/1 volt. The bandwidth was approximately 1000 cycles at 40 kc. A possible configuration using uniform Traveling-Wave Parametric Amplifier principles and the theory of passive distributed-coupling transducers to achieve an acoustic transducer with gain is dis cussed briefly. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1963
- Accession Number
- AD0416641
Entities
People
- Shyne B. Marley