HIGH POWER VARACTOR FOR UHF TRANSMISSION.

Abstract

Double diffused devices have been improved from a previous level of 21 watts output at about 55% efficiency to 24 watts output at 60% efficiency. This has been accomplished by using increased silicon die diameter from .030 in. to .040 in. Consideration was given to the use of a planar, epitaxial device in a cartridge type package with the objective of further improving thermal characteristics and reducing package parasitics. Devices were fabricated employing a junction diameter of approximately .030 inch which delivered 25 watts output at 64% efficiency. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1964
Accession Number
AD0456484

Entities

Organizations

  • Motorola Mobility

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Diameters
  • Efficiency
  • Geometry
  • Mathematics

Readers

  • Electronics Engineering
  • Semiconductor Device Technology