Assessment of Solid State Replacement of TWT Amplifiers for Satellite Communications

reportActive / Technical Report | Accession Number: ADA030797 | Open PDF

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.

Author(s):
Dalman, G. C. ; Eastman, L. F. ; Lee, C. A. ; Frey, J. ; Ku, W.
Author Organization(s):
CORNELL UNIV ITHACA NY
Descriptive Note:
Interim rept. Apr 1975-May 1976
Supplementary Note:
DOI: 10.21236/ADA030797
Pagination:
0112

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
RADC-TR-76-245
Contract/Grant Number(s):
F30602-74-C-0001
Task Number(s):
557303
Project Number(s):
AF-5573
Monitor Series:
TR-76-245, RADC
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.5_Lessons Learned; JCA_1.2.3_Educating; JCA_4.3_Maintain; JCA_1.3.2_Personnel Management; JCA_2.2_Collection; JCA_JCA_4.1.2_Sustain the Force; JCA_4.1_Deployment and Distribution
Modernization Areas:
Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*TRAVELING WAVE TUBES, *SOLID STATE ELECTRONICS, *MICROWAVE AMPLIFIERS, *COMMUNICATION SATELLITES, DISTORTION, INTERMODULATION, IMPATT DIODES, REPLACEMENT, FIELD EFFECT TRANSISTORS, EFFICIENCY, GALLIUM ARSENIDES, POWER AMPLIFIERS
Field(s)/Group(s):
Electrical and Electronic Equipment, Unmanned Spacecraft
Keyword(s):
GAAS READ DIODES
Report Date:
1976 Aug 01