One Kilowatt UHF Power Amplifier Study

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Abstract:

A study effort was conducted to determine the current state-of-the- art in one kilowatt UHF power amplifiers. Studies and investigations culminated in a final technical report containing a detail performance specification and recommended overall design approach for a solid state one kilowatt amplifier. A discussion section is provided which explains the rationale behind the recommended requirements of the detail specification. Investigations included research into the characteristics of UHF airborne transmitters, either in existence or under development, which would be used as drivers for a power amplifier. Specific hardware investigations were conducted in the areas of RF power transistors, power combiners and splitters, and certain keying and control circuits. The results of these investigations were used to develop RF block diagram characteristics of a kilowatt power amplifier. Additional paper studies and analyses investigated cooling requirements, primary power requirements, reliability, packaging and physical characteristics, performance advantages of a reduced bandwidth design, and a comparison of solid state and tube-type kilowatt amplifier characteristics.

Author(s):
Hoffmann, Paul R.
Author Organization(s):
ELECTRONIC COMMUNICATIONS INC ST PETERSBURG FL
Descriptive Note:
Final rept. 1 May 1974-31 Jan 1975
Pagination:
0055

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):
AFAL-TR-75-56
Contract/Grant Number(s):
F33615-74-C-1157
Task Number(s):
122702
Project Number(s):
1227
Monitor Series:
TR-75-56, AFAL
 Subject Terms
Joint Capability Areas:
JCA_6.1.3_Switching and Routing; JCA_6_Net Centric; JCA_6.1.1_Wired Transmission; JCA_6.1.2_Wireless Transmission; JCA_6.1_Information Transport; JCA_5_Command and Control; JCA_4.7.2_Installation Services; JCA_4.7_Base and Installations Support; JCA_5.3_Planning; JCA_1_Force Support; JCA_6.3.3_Spectrum Management; JCA_6.4.1_Secure Information Exchange; JCA_1.2.5_Lessons Learned; JCA_1.2_Force Preparation; JCA_1.3_Human Capital Management
Modernization Areas:
Directed Energy; Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*POWER AMPLIFIERS, *TRANSISTOR AMPLIFIERS, PACKAGED CIRCUITS, RADIOFREQUENCY POWER, SOLID STATE ELECTRONICS, SPECIFICATIONS, THERMAL PROPERTIES, ULTRAHIGH FREQUENCY
Field(s)/Group(s):
Electrical and Electronic Equipment
Keyword(s):
WU12270209
Report Date:
1975 May 01