Title :
Millimeter wave tripler evaluation of a metal/2-DEG Schottky diode varactor
Author :
Koh, P.J. ; Peatman, W.C.B. ; Crowe, T.W.
Author_Institution :
Dept. of Electr. Eng., Virginia Univ., Charlottesville, VA, USA
fDate :
3/1/1995 12:00:00 AM
Abstract :
A new Schottky diode, based on a contact at the edge of a 2-dimensional electron gas (2-DEG) is investigated for use as a multiplier element in the millimeter and submillimeter wavelength regions. 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 reactance. Device results are presented which demonstrate low series resistance, large capacitance modulation, and significantly higher tripler efficiency (75-225 GHz) than previously reported multiplier results of this type of structure
Keywords :
Schottky diodes; frequency multipliers; millimetre wave diodes; varactors; 2-dimensional electron gas; 75 to 225 GHz; depletion layer; junction capacitance; metal/2-DEG Schottky diode varactor; millimeter wave tripler; millimeter wavelength region; nonlinear reactance; submillimeter wavelength region; Capacitance; Circuits; Electrons; Frequency; Gallium arsenide; Receivers; Schottky barriers; Schottky diodes; Varactors; Voltage;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
