ISSTT Proceedings

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A Schottky/2-DEG Varactor Diode for Millimeter and Submillimeter Wave Multiplier Applications

Authors:
W. C. B. Peatman, T. W. Crowe, M. Shur, B. Gelmont
Abstract:
A new Schottky diode is investigated for use as a multiplier element in the millimeter and submillimeter wavelength regions. The new diode is based on the Schottky contact at the edge of a 2-dimensional electron gas (2-DEG). As a negative voltage is applied to the Schottky contact, the depletion layer between the Schottky contact and the 2-DEG expands and the junction capacitance decreases, resulting in a non-linear capacitance voltage characteristic. In this paper, we outline the theory, design, fabrication and evaluation of the new device. Recent results include devices having cutoff frequencies of 1 THz and above. Preliminary multiplier results are also presented.
Categories:
Varactors
Year:
1992
Session:
2
Full-text:
Download a PDF of this paper.
Page Number(s):
93-109