Modeling and characteristic of the SMT Board Plug connector in high speed optical communication system

Haoran Wu; Zhenzhen Dong; Tanglin Wang; Heng Zhao; Junbo Feng; Naidi Cui; Jie Teng; Jin Guo

doi:10.1117/12.2179587

13 April 2015 Modeling and characteristic of the SMT Board Plug connector in high speed optical communication system

Haoran Wu, Zhenzhen Dong, Tanglin Wang, Heng Zhao, Junbo Feng, Naidi Cui, Jie Teng, Jin Guo

Proceedings Volume 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II; 952211 (2015) https://doi.org/10.1117/12.2179587
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held August-October 2014, 2014, China, China

Abstract

Modeling and characteristic of the SMT Board Plug connector, which is used to connect micro optical transceiver to the main board, are proposed and analyzed in this paper. When the high speed signal transfers from the PCB of transceiver to main board through SMT Board Plug connector, the structure and material discontinuity of the connector causes insertion losses and impedance mismatches. This makes the performance of high speed digital system exacerbated. So it is essential to analyze the signal transfer characteristics of the connector and find out what factors affected the signal quality at the design stage of the digital system. To solve this problem, Ansoft's High Frequency Structure Simulator (HFSS), based on the finite element method, was employed to build accurate 3D models, analyze the effects of various structure parameters, and obtain the full-wave characteristics of the SMT Board Plug connectors in this paper. Then an equivalent circuit model was developed. The circuit parameters were extracted precisely in the frequency range of interests by using the curve fitting method in ADS software, and the result was in good agreement with HFSS simulations up to 8GHz with different structure parameters. At last, the measurement results of S-parameter and eye diagram were given and the S-parameters showed good coincidence between the measurement and HFSS simulation up to 4GHz.

Citation Download Citation

Haoran Wu, Zhenzhen Dong, Tanglin Wang, Heng Zhao, Junbo Feng, Naidi Cui, Jie Teng, and Jin Guo "Modeling and characteristic of the SMT Board Plug connector in high speed optical communication system", Proc. SPIE 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II, 952211 (13 April 2015); https://doi.org/10.1117/12.2179587

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KEYWORDS

Connectors

3D modeling

Circuit switching

Transceivers

Signal attenuation

Device simulation

Eye models

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