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Publication - Professor Martin Cryan

    Nonlinearity and Power Handling Characterization of an Optically Reconfigurable Microwave Switch

    Citation

    Pang, W, Ben Smida, S & Cryan, M, 2018, ‘Nonlinearity and Power Handling Characterization of an Optically Reconfigurable Microwave Switch’. in: 2018 IEEE/MTT-S International Microwave Symposium (IMS 2018): Proceedings of a meeting held 10-15 June 2018, Philadelphia, Pennsylvania, USA.. Institute of Electrical and Electronics Engineers (IEEE), pp. 420-422

    Abstract

    This paper presents a highly linear optically reconfigurable microwave switch with high power handling ability. A silicon superstrate with bottom illumination is employed. A transparent substrate is used and two different microstrip gap distances are characterized by two-tone nonlinearity measurement with different tone spacings and optical powers. A maximum third order intercept point referred to input power of +78.5dBm has been obtained and the maximum microwave power tested was over 30W per tone close to 2 GHz. Thermal imaging has been used to observe the device hot-spots as a function of RF power.

    Full details in the University publications repository