ISSTT Proceedings

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Recent advances in resonant-tunneling-diode oscillators

Authors:
E.R. Brown, C.D. Parker, K.M. Molvar, M.K. Connors, K.D. Stephan
Abstract:
Oscillation frequencies between 100 and 712 GHz have been obtained in InAs/AlSb double-barrier resonant-tunneling diodes (RTDs). The power density obtained at 360 GHz was 90 W cm-², which is 50 times that obtained from GaAs/AlAs diodes at essentially the same frequency. Oscillation at 712 GHz with a power of 0.3 µW was observed, representing the highest oscillation frequency reported to date from a solid-state electronic oscillator at room. temperature. A high-Q serniconfocal resonator has been used to lock a waveguide-resonator-based RTD oscillator operating at a frequency of 103 GHz. The locked-oscillator linewidth was 40 kHz, which is about 250 times narrower than the linewidth of the oscillator without the high-Q resonator.
Categories:
Oscillators
Year:
1991
Session:
2
Full-text:
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Page Number(s):
133-144