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Proceedings Paper

Compact equivalent-circuit model of LiNbO3 modulator for passive millimeter wave imaging system
Author(s): Feng-chen Qian; Xiao-ping Xie; Ya-lin Ye
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Paper Abstract

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.

Paper Details

Date Published: 16 August 2011
PDF: 7 pages
Proc. SPIE 8196, International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, 81961L (16 August 2011); doi: 10.1117/12.900869
Show Author Affiliations
Feng-chen Qian, Xi'an Institute of Optics and Precision Mechanics (China)
Graduate Univ. of CAS (China)
Xi'an Communication Institute (China)
Xiao-ping Xie, Xi'an Institute of Optics and Precision Mechanics (China)
Xi'an Communication Institute (China)
Ya-lin Ye, Xi'an Communication Institute (China)


Published in SPIE Proceedings Vol. 8196:
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications
John C. Zarnecki; Carl A. Nardell; Rong Shu; Jianfeng Yang; Yunhua Zhang, Editor(s)

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