Natrella, M;
Liu, C-P;
Graham, C;
van Dijk, F;
Liu, H;
Renaud, CC;
Seeds, AJ;
(2016)
Accurate equivalent circuit model for millimetre-wave UTC photodiodes.
Optics Express
, 24
(5)
pp. 4698-4713.
10.1364/OE.24.004698.
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Abstract
We present a comprehensive study of uni-travelling carrier photodiode impedance and frequency photo-response supported by measurements up to 110 GHz. The results of this investigation provide valuable new information for the optimisation of the coupling efficiency between UTC-PDs and THz antennas. We show that the measured impedance cannot be explained employing the standard junction-capacitance/series-resistance concept and propose a new model for the observed effects, which exhibits good agreement with the experimental data. The achieved knowledge of the photodiode impedance will allow the absolute level of power emitted by antenna integrated UTCs to be predicted and ultimately maximised.
| Type: | Article |
|---|---|
| Title: | Accurate equivalent circuit model for millimetre-wave UTC photodiodes |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1364/OE.24.004698 |
| Publisher version: | http://dx.doi.org/10.1364/OE.24.004698 |
| Language: | English |
| Additional information: | Copyright © 2016 Optical Society of America. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1475738 |
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