ISSTT Proceedings

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Tripling to 250 GHz with Planar Multiple Barrier Heterostructure Barrier Varactors

Authors:
J.R. Jones, S.H. Jones, W.L. Bishop, R. Lipsey
Abstract:
We report on the design, simulation, fabrication, and testing of four-barrier, planar, heterostructure barrier varactor (HBV) triplers. For direct tripling, HBVs are an ideal device since the C-V characteristic is symmetric and only odd-harmonic generation occurs under large signal excitation. However, the optimal design of HBVs for specific applications is more complex than for conventional Schottky Barrier Devices. This is a direct result of the complex nature of the heterostructure, as well as the nearly infinite number of variations in heterostructure materials and the number of barriers to be considered. The fabrication process is similar to that used at the University of Virginia for the fabrication of multiple-anode Schottky Barrier Varactors. An overview of the fabrication process and the DC and RF testing results are discussed. Specific results demonstrating 2.5 mW of output power at 252 GHz (80 mW input) are reported for this direct tripler.
Categories:
Multipliers, Sources
Year:
1996
Session:
2
Full-text:
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Page Number(s):
125-142