Nonlinear distortion evaluation of reconfigurable RF circuits in wireless communication systems

Chakrabarty, K., Bukvic, B., Mohottige, N. and Budimir, D. (2013) Nonlinear distortion evaluation of reconfigurable RF circuits in wireless communication systems. In: SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC2013), 4 – 7 August 2013, Rio de Janeiro, Brazil.

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Abstract

A compact highly linear microstrip dual - mode optically switchable filter and a reconfigurable power amplifier are presented. The key characteristics of the dual - mode switchable filter are investigated and described. A second order filter design procedure is outlined to facilitate the realisation of Butterworth and Chebyshev functions. The proposed filter was built and tested with an optical switch, which comprised of a silicon dice acti vated using near infrared light. The measured and simulated results are in good agreement. The measured insertion loss in the ON state was 3.0 dB the isolation in the OFF state was 45 dB at the centre frequency. An evaluation of filter distortion is presen ted for digitally modulated M - QAM and M - QAM OFDM singals.

Item Type: Conference or Workshop Item (Paper)
Subjects: University of Westminster > Science and Technology
SWORD Depositor: repository@westminster.ac.uk
Depositing User: repository@westminster.ac.uk
Date Deposited: 18 Jun 2014 14:57
Last Modified: 30 Jun 2016 13:26
URI: http://westminsterresearch.wmin.ac.uk/id/eprint/13965

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