Accession Number:

ADA030797

Title:

Assessment of Solid State Replacement of TWT Amplifiers for Satellite Communications

Descriptive Note:

Interim rept. Apr 1975-May 1976

Corporate Author:

CORNELL UNIV ITHACA NY

Report Date:

1976-08-01

Pagination or Media Count:

112.0

Abstract:

This report summarizes the present state-of-the-art achievements of GaAs FET transistors, assesses their probable capabilities and the associated technology problems. Designs of FET high power amplifiers are included and it is noted that measured intermodulation distortion in these amplifiers is higher than anticipated. Finally it is shown that efficient high power GaAs Read diodes of the hard punch-on variety can satisfy the TWTA distortion specifications. Thus an FETRead diode hybrid amplifier is proposed that should meet all specifications except that of overall efficiency which would probably be reduced to 20-25.

Subject Categories:

  • Electrical and Electronic Equipment
  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE