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Design and Implementation of Highly Selective and Compact Low Profile Bandpass Filter for 5G Mid-Band Frequency Applications

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Abstract

In this paper, a low profile and highly selective microstrip band pass filter is proposed and designed for 5G mid band frequency applications which supports commercial 5G networks. In this filter design, a set of square loop ring resonators are in conjunction with the T shaped feed lines in the outer resonator. The overall filter size is miniaturized, covering about of 13 × 13 × 1.6 mm3 with the usage of FR4 substrate in design process. The designed filter is simulated by method of moment based electromagnetic simulator IE3D. The filter projected an insertion loss of about −0.1 dB and return loss of–27 dB with a bandwidth of about 400 MHz which is liable to be a wide band spectrum for frequency range of 3.4–3.8 GHz with a centre frequency of 3.6 GHz indicating a quality factor of 9. The designed filter is fabricated and tested using Network analyser. The measured results validated good response with the simulated filter design.

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Data Availability

The datasets generated during and/or analysed during the current study are not publicly available due to confidentiality but are available from the corresponding author on reasonable request.

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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. Department of Electronics and Communication Engineering, K. Ramakrishnan College of Technology, Tiruchirapalli, India

    G. Revathi

  2. Department of Electronics and Communication Engineering, Mount Zion College of Engineering and Technology, Pudukottai, Tamil Nadu, India

    S. Robinson

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  1. G. Revathi
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  2. S. Robinson
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Contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by RG and RS. The first draft of the manuscript was written by RG and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to G. Revathi.

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Revathi, G., Robinson, S. Design and Implementation of Highly Selective and Compact Low Profile Bandpass Filter for 5G Mid-Band Frequency Applications. Wireless Pers Commun 130, 363–375 (2023). https://doi.org/10.1007/s11277-023-10289-4

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