BROADBAND TRANSMITTER TECHNIQUES.
Abstract
Three techniques for developing power levels in excess of 100-watts over wide bandwidths in the VHF frequency range were investigated; (1) direct amplification at power output, (2) generation of power at lower frequency and use of passive multiplyers, and (3) use of active multiplying devices to provide both amplification and frequency multiplication. Third technique was most successful and an amplifier having 100-watt, at 100-MHz, with 20% bandwidth was constructed. However, limiting factor was impedance match at the input to the high power transistor. Recommend efforts be directed to computer techniques to affect impedance match.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1967
- Accession Number
- AD0649783
Entities
People
- W. Doherty
- W. Hatley
Organizations
- Sylvania Electric Products