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Exploiting negative impedance converters to extend the bandwidth of LEDs for visible light communication

Kassem, A; Darwazeh, I; (2020) Exploiting negative impedance converters to extend the bandwidth of LEDs for visible light communication. In: 2019 26th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2019. (pp. pp. 302-305). IEEE: Genoa, Italy. Green open access

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Abstract

This paper proposes, for the first time, an optically lossless light emitting diode (LED) bandwidth extension technique based on the adoption of negative impedance converters applied in the context of high capacity visible light communication systems. The proposed technique aims to achieve bandwidth extension by offsetting the bandwidth-limiting effect of the LED diffusion capacitance through the introduction of a parallel negative capacitance. With the proposed technique, we predict up to 200% improvement in the LED modulation bandwidth with studies based on a verified LED equivalent model.

Type: Proceedings paper
Title: Exploiting negative impedance converters to extend the bandwidth of LEDs for visible light communication
Event: 2019 26th IEEE International Conference on Electronics, Circuits and Systems (ICECS)
ISBN-13: 9781728109961
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/ICECS46596.2019.8965085
Publisher version: https://doi.org/10.1109/ICECS46596.2019.8965085
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Light emitting diodes, visible light communication, negative impedance converters, negative capacitance
UCL classification: UCL
UCL > Provost and Vice Provost Offices
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/10097899
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