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Design of Compact Dual Wideband Bandpass Filter Based on Transversal Signal Interaction Concepts

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Abstract

This paper proposes a transversal dual-band wideband bandpass filter (BPF) with two transmission paths. We introduced two short coupled lines as the ideal 180° phase shift structure to realize the additional transmission path. A highly selective passband can be achieved by obtaining transmission zeros through a lateral signal cancellation mechanism. Using the classical odd/even mode analysis, seven modes can be excited for the dual-wideband structure. The fractional bandwidth of the first wide passband can reach 107% for multi-service applications. The presented transversal BPF with dual wideband is fabricated for verification. Good agreement between experimental results and simulation predictions validates the effectiveness of the proposed design methodology.

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The data underlying this article will be shared on reasonable request to the corresponding author.

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Acknowledgements

The authors would like to thank the Dongsheng Xu and **g Guo for any supports

Funding

This work is supported by the Research and Development Program in Significant Area of Guangdong Province (Grant No. 2020B0101040002), Guangzhou Key Research & Development Program, Major Science and Technology Projects. (Grant No. 202206070001). The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.

Author information

Authors and Affiliations

  1. Tian** Key Laboratory of Film Electronic and Communication Devices, School of Electrical and Electronic Engineering, Tian** University of Technology, Tian**, 300384, China

    Lirong Qian, Zeqin Zhang, Cui** Li & Litian Wang

  2. Engineering Research Center for Optoelectronic Devices and Communication Technology of Ministry of Education, Tian** University of Technology, Tian**, 300384, China

    Lirong Qian, Zeqin Zhang, Cui** Li & Litian Wang

  3. Institue of Acoustics, Chinese Academy of Sciences, Bei**g, 100190, China

    Yahui Tian

  4. National Center for Nanoscience and Technology, Bei**g, 100190, China

    Honglang Li

  5. GBA Research Innovation Institute for Nanotechnology, Guangzhou, 510530, China

    Honglang Li

  6. Guangdong Guang Na **n Technology Co, Ltd, Guangzhou, 510530, China

    Honglang Li

Authors
  1. Lirong Qian
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  2. Zeqin Zhang
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  3. Cui** Li
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  4. Yahui Tian
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  5. Honglang Li
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  6. Litian Wang
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Contributions

All authors contributed to the designing conception. The simulation mainly accomplished by LQ. The manuscript written by ZZ and LW. The data collection and analysis were performed by CL and YT. HL contributes the reviewing and editing of this paper. All author read and approved the final manuscript.

Corresponding author

Correspondence to Litian Wang.

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Qian, L., Zhang, Z., Li, C. et al. Design of Compact Dual Wideband Bandpass Filter Based on Transversal Signal Interaction Concepts. Wireless Pers Commun 133, 245–257 (2023). https://doi.org/10.1007/s11277-023-10766-w

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  • DOI: https://doi.org/10.1007/s11277-023-10766-w

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