Accession Number : AD0635831

Title :   DEVELOPMENT OF A TRANSISTOR-VARACTOR DIODE CAPABLE OF 5 WATTS OUTPUT AT 2.3 GHZ.

Descriptive Note : Interim technical rept. no. 3, 1 Dec 65-28 Feb 66.

Corporate Author : RADIO CORP OF AMERICA SOMERVILLE N J ELECTRONIC COMPONENTS AND DEVICES

Personal Author(s) : McGeough, P. L. ; Lee,H. C.

Report Date : 28 FEB 1966

Pagination or Media Count : 27

Abstract : Significant improvement in the pattern definition and the registration between the various TA2790 photomasks was achieved in a second set of photomasks. Difficulties associated with the definition of the metal pattern have continued. However, modification of the metallizing pattern is expected to eliminate this problem and allow a valid evaluation of the device capability. Continued investigation of various diffusion cycles and epitaxial layer properties has shown an improvement in performance by the use of thin epitaxial layers in conjunction with both shallow base and P+ diffusion depths. Common-emitter amplifier measurements at 770 MHz have shown the flat-top stripline package to be superior to the TO-60 case. The advantages afforded by this package will be more significant during multiplier operation at increased output frequencies. (Author)

Descriptors :   (*SEMICONDUCTOR DEVICES, MICROWAVE EQUIPMENT), (*FREQUENCY MULTIPLIERS, SEMICONDUCTOR DEVICES), POWER AMPLIFIERS, TRANSISTORS, VARACTOR DIODES, PACKAGED CIRCUITS, PHOTOENGRAVING, DIFFUSION, RADIOFREQUENCY POWER

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE