ISSTT Proceedings

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Wideband High Efficiency Planar Diode Doublers

Authors:
Neal Erickson
Abstract:
Very wideband heterodyne receiver systems are planned for many astronomical applications during the next 540 years extending up to 2.7 THz for space and airborne applications. At present the only means to provide sufficient local oscillator power for these subinillimeter receivers is the Schottky varactor diode frequency multiplier. Using these devices in a chain of multipliers will require high output power with high efficiency in the early stages. This paper describes two new designs for planar varactor doublers which cover wide bandwidths with fixed tuning. A doubler for 150 GHz has 28% peak efficiency with a 3 dB bandwidth of 130-168 GHz. Room temperature output is 2540 mW and the efficiency increases to a peak of 37% with ~55 mW output when cooled to 80 K. A similar doubler has been designed for 270-340 GHz.
Categories:
Multipliers, Sources
Year:
1998
Session:
8
Full-text:
Download a PDF of this paper.
Page Number(s):
473-480