Optically reconfigurable RF circuits

Draskovic, Drasko, Christodoulou, Georgina and Budimir, Djuradj (2010) Optically reconfigurable RF circuits. In: Proceedings of the Fourth European Conference on Antennas and Propagation (EuCAP2010), 12-16 April 2010, Barcelona, Spain. IEEE, pp. 1-3. ISBN 9781424464319

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In this paper, two novel concepts that use optically reconfigurable RF circuits are presented. In the first example, a Silicon switch was implemented in the input matching network of a power amplifier. The silicon gap-loaded switch properties were changed from insulator state to near conducting state under illumination and resulted in the change of the effective length of the stub in the input matching network, while the output matching network was not changed. Tunable class AB power amplifier with the optical switch in the input matching circuit has obtained the frequency tuning range of 2.5–3.5 GHz with no significant loss in efficiency and linearity. An optically reconfigurable antenna system (ORAS) could be realized on a single chip using Silicon based technology.

Item Type: Book Section
Subjects: University of Westminster > Science and Technology > Electronics and Computer Science, School of (No longer in use)
Depositing User: Miss Nina Watts
Date Deposited: 19 Jan 2011 10:22
Last Modified: 19 Jan 2011 10:22
URI: http://westminsterresearch.wmin.ac.uk/id/eprint/9001

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