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A Novel Compact Microstrip Octagonal Triplexer for Wireless Applications

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Abstract

In wireless communication, the microstrip triplexer is considered a promising solution for efficiently transmitting large quantities of data by enabling the combination or separation of three signals on the same transmission channel. In this context, this paper presents a new octagonal triplexer, which operates at 3.5, 5 and 6 GHz. The proposed structure combines both coupling and meandrous lines to form the octagonal symmetric bandpass filters that are connected to realize the compact triplexer. In order to validate the proposed triplexer design, an approximated equivalent inductance-capacitance model of the presented octagonal meandrous resonator is analyzed, developed and confirmed. Consequently, the triplexer topology is both innovative and compact, taking up a remarkably small space of 0.0033 λg2 while providing high isolation (S23, S34, S24) between the three channels of approximately 25 dB, low insertion losses (S21, S31, and S41) of about 1.5, 1.5, and 1.46 dB, respectively, and good return loss (S11) exceeding 17 dB. The proposed triplexer is fabricated and measured where the measurements and simulations are competitive. This agreement proves that our triplexer is a strong candidate for the 5 G, Wi-Fi and satellite applications.

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Funding

The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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Authors and Affiliations

  1. Laboratory of Sciences and Advanced Technology, Department of Civil and Industrial Sciences and Technologies, National School of Applied Sciences, Abdelmalek Essaâdi University, Tetuan, Morocco

    Souhaila Ben Haddi & Alia Zakriti

  2. Information System and Telecommunication Laboratory, Department of Physics, Faculty of Sciences, Abdelmalek Essaâdi University, Tetuan, Morocco

    Asmaa Zugari

  3. Department of Communication and Computer Engineering, Cihan University-Erbil, Erbil, Iraq

    Salah I. Yahya

  4. Department of Software Engineering, Faculty of Engineering, Koya University, Koya, KOY45, Iraq

    Salah I. Yahya

  5. Institute of Research and Development, Duy Tan University, Da Nang, 50000, Vietnam

    Leila Nouri

  6. School of Engineering and Technology, Duy Tan University, Da Nang, 50000, Vietnam

    Leila Nouri

Authors
  1. Souhaila Ben Haddi
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  2. Asmaa Zugari
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  3. Alia Zakriti
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  4. Salah I. Yahya
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  5. Leila Nouri
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Contributions

All authors contributed to the study, conception and design. The first draft of the manuscript were realized by SBH. All authors commented on previous version of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Souhaila Ben Haddi.

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Ben Haddi, S., Zugari, A., Zakriti, A. et al. A Novel Compact Microstrip Octagonal Triplexer for Wireless Applications. Wireless Pers Commun 135, 763–775 (2024). https://doi.org/10.1007/s11277-024-11067-6

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