This paper presents a compact frequency-independent equivalent-circuit model for mmW characteristics of lithium niobate (LiNbO3) optical modulator, taking the skin effect, and substrate effect into consideration. Equivalent-circuit model with only ideal lumped elements represents the broadband electrical response of LiNbO3 modulator. A 4-long ladder model is used to model the skin effect. Coupling capacitor is used to simulate the substrate coupling from the CPW to the buffer and LiNbO3 substrate. Lumped-element circuit model was cascaded to model the distributive skin effect, transmission attenuation, and substrate effect. The equivalent-circuit models are fully SPICE compatible and can be incorporated directly into common circuit simulators and microwave design tools.


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    Title :

    Compact equivalent-circuit model of LiNbO3modulator for passive millimeter wave imaging system


    Contributors:

    Conference:

    International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications ; 2011 ; Beijing,China


    Published in:

    Publication date :

    2011-08-15





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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