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A Flexible Broadband Single RF Architecture Based on Time-Modulated Array

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Communications, Signal Processing, and Systems (CSPS 2018)

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 517))

Abstract

With a single RF front-end to equivalently realize RF transformation of multiple antenna elements, single RF array is an important way to reduce the manufacturing cost of massive MIMO systems. Time-division-multiplexing-based single RF array is suitable for uplink receiver array. However, there are some bottlenecks in broadband applications, such as very fast switching speed requirement of RF switch, wide bandwidth requirement of analog front-end and low signal fidelity, which stop the wide use of this technology. To overcome the above bottlenecks, a time-modulated-array-based broadband single RF receiver array architecture is proposed in this paper, and the theory of time-modulated array along with the idea of signal reconstruction is also introduced to broadband the single RF array. With these methods, the performance requirements of RF switching speed and analog front-end are expected to be reduced significantly while the signal fidelity degradation can be safely ignored. The experimental results show that the proposed architecture can improve the bandwidth of the system with traditional RF switching elements.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (NSFC) under Grant 61604054, and Shanghai Aerospace Science and Technology Innovation Fund (SAST2016097, SAST2017112).

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Authors and Affiliations

  1. School of Information Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China

    Xiaofeng Ling & Nan Wang

Authors
  1. Xiaofeng Ling
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  2. Nan Wang
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Corresponding author

Correspondence to Nan Wang .

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Editors and Affiliations

  1. Department of Electrical Engineering, University of Texas at Arlington, Arlington, TX, USA

    Qilian Liang

  2. School of Information and Communication Engineering, Dalian University of Technology, Dalian, China

    Xin Liu

  3. School of Information Science and Technology, Dalian Maritime University, Dalian, China

    Zhenyu Na

  4. College of Electronic and Communication Engineering, Tianjin Normal University, Tianjin, China

    Wei Wang

  5. College of Electronic and Communication Engineering, Tianjin Normal University, Tianjin, China

    Jiasong Mu

  6. College of Electronic and Communication Engineering, Tianjin Normal University, Tianjin, China

    Baoju Zhang

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Ling, X., Wang, N. (2020). A Flexible Broadband Single RF Architecture Based on Time-Modulated Array. In: Liang, Q., Liu, X., Na, Z., Wang, W., Mu, J., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2018. Lecture Notes in Electrical Engineering, vol 517. Springer, Singapore. https://doi.org/10.1007/978-981-13-6508-9_80

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  • DOI: https://doi.org/10.1007/978-981-13-6508-9_80

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-13-6507-2

  • Online ISBN: 978-981-13-6508-9

  • eBook Packages: EngineeringEngineering (R0)

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