High efficiency bias stabilisation for resonant tunneling diode oscillators

Cornescu, A. C., Morariu, R. , Ofiare, A., Al-Khalidi, A. , Wang, J., Figueiredo, J. M.L. and Wasige, E. (2019) High efficiency bias stabilisation for resonant tunneling diode oscillators. IEEE Transactions on Microwave Theory and Techniques, 67(8), pp. 3449-3454. (doi:10.1109/TMTT.2019.2916602)

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Abstract

We report on high-efficiency, high-power, and low-phase-noise resonant tunneling diode (RTD) oscillators operating at around 30 GHz. By employing a bias stabilization network, which does not draw any direct current (dc), the oscillators exhibit over a tenfold improvement in the dc-to-RF conversion efficiency (of up to 14.7%) compared to conventional designs (~0.9%). The oscillators provide a high maximum output power of around 2 dBm, and low phase noise of -100 and -113 dBc/Hz at 100 kHz and 1 MHz offset frequencies, respectively. The proposed approach will be invaluable for realizing very high efficiency, low phase noise, and high-power millimeter-wave (mm-wave) and terahertz (THz) RTD-based sources.

Item Type:Articles
Additional Information:This work was supported in part by the European Commission through the iBROW and TERAPOD projects under Grant 645369 and Grant 761579. The work of A. C. Cornescu was supported by the Engineering and Physical Sciences Research Council (EPSRC) through a Ph.D. studentship.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Wasige, Professor Edward and Morariu, Razvan and Wang, Dr Jue and Al-Khalidi, Dr Abdullah and Cornescu, Andrei and Ofiare, Dr Afesomeh
Authors: Cornescu, A. C., Morariu, R., Ofiare, A., Al-Khalidi, A., Wang, J., Figueiredo, J. M.L., and Wasige, E.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:IEEE Transactions on Microwave Theory and Techniques
Publisher:IEEE
ISSN:0018-9480
ISSN (Online):1557-9670
Published Online:12 June 2019

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