Accession Number:

AD0296799

Title:

DISTRIBUTED JUNCTION TUNNEL DIODE OSCILLATOR. PHASE II

Descriptive Note:

Corporate Author:

DUQUESNE UNIV PITTSBURGH PA

Report Date:

1962-10-31

Pagination or Media Count:

29.0

Abstract:

Efforts to determine the feasibility of constructing 10 mw 10 kmc tunnel diode oscillators continued and diode requirements for these oscillators were determined. Various materials, doping elements, and fabrication techniques were investigated to determine the best combination of these to potentially meet the frequency and power requirements. Three packaged and two distributed junction tunnel diode oscillators were designed and built. Using the packaged single diode oscillator, power outputs of 100 microwatts as been obtained in X- band and approximately 12 milliwatt at 5 - 6 kmc. Tuning problems held back use of larger capacity, larger peak current diodes which have cutoff frequencies well in excess of 10 kmc. Some circuit changes have been made to eliminate these tuning problems. Using a ring distributed tunnel diode in the distributed oscillator power outputs of 3 mw have been obtained at low frequencies. In addition, a stripline package oscillator is being built. The low impedance of this system should eliminate some of the impedance matching problems with the waveguide oscillators.

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE