Accurate small-signal equivalent circuit modelling of resonant tunneling diodes to 110 GHz

Morariu, R. , Wang, J., Cornescu, A. C., Al-Khalidi, A. , Ofiare, A., Figueiredo, J. M.L. and Wasige, E. (2019) Accurate small-signal equivalent circuit modelling of resonant tunneling diodes to 110 GHz. IEEE Transactions on Microwave Theory and Techniques, 67(11), pp. 4332-4340. (doi:10.1109/TMTT.2019.2939321)

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Abstract

This article presents a novel, on-wafer deembedding technique for the accurate small-signal equivalent circuit modeling of resonant tunneling diodes (RTDs). The approach is applicable to stabilized RTDs, and so enables the modeling of the negative differential resistance (NDR) region of the device's current-voltage (I-V) characteristics. Furthermore, a novel quasi-analytical procedure to determine all the equivalent circuit elements from the deembedded S-parameter data is developed. Extraction results of a 10 μm × 10 μm stabilized, low-current density RTD at different bias points show excellent fits between modeled and measured S-parameters up to 110 GHz.

Item Type:Articles
Additional Information:The authors would like to extend their thanks to the James Watt Nanofabrication Centre (JWNC) staff, at the University of Glasgow, for their support in the device fabrication, and also the support of the European Regional Development Fund (FEDER), Competitiveness and Internationalization Operational Programme (Compete 2020) of the Portugal 2020 framework RETIOT project (POCI-01-0145-FEDER-016432). This work was supported in part by the European Commission through the iBROW and TERAPOD projects under grants 645369 and 761579, respectively It was also supported by the Engineering and Physical Sciences Research Council (EPSRC) through a PhD studentship to Razvan Morariu.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Wasige, Professor Edward and Morariu, Razvan and Al-Khalidi, Dr Abdullah and Wang, Dr Jue and Cornescu, Andrei and Ofiare, Dr Afesomeh
Authors: Morariu, R., Wang, J., Cornescu, A. C., Al-Khalidi, A., Ofiare, A., 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:17 September 2019

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