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Frequency switchable dual-band branch-line coupler

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conference contribution
posted on 05.07.2010, 15:52 by D. Draskovic, Chinthana Panagamuwa, D. Budimir, J. C. Vardaxoglou
In this paper, silicon switches are implemented in the design of frequency switchable dual-band branch-line coupler. Frequency switching is achieved by increasing the power of the laser applied to the highly resistive silicon wafer and changing the properties of silicon under optical illumination. The advantages of this approach are high-speed switching, electromagnetic transparency (no interference) and thermal and electrical isolation between the coupler and the control circuit. A frequency shift of 35% and 10% has been achieved from all switches off to all switches on in lower (900 MHz) and upper (1800 MHz) frequency bands, respectively.

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School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

DRASKOVIC, D. ... et al, 2009. Frequency switchable dual-band branch-line coupler. IN: Proceedings of the 39th European Microwave Conference, 29 September - 1 October 2009, Rome, Italy, pp.133-136.

Publisher

© EuMA (European Microwave Association)

Version

VoR (Version of Record)

Publication date

2009

Notes

This article was published in the Proceedings of the 39th European Microwave Conference [© EUMA] and can also be found at: http://ieeexplore.ieee.org/

ISBN

9782874870118

Language

en

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