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Circularly Polarized 1 × 4 Antenna Array with Improved Isolation for Massive MIMO Base Station

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Applied Information Processing Systems

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 1354))

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Abstract

This paper proposes a circularly polarized 1 × 4 antenna array with improved Isolation for Massive MIMO Base Station application. Massive MIMO playing an important role in the design and implementation of 5G. An antenna array is designed using a Hexagonal microstrip antenna. The proposed antenna has eight ports in the design process. Circular polarization is incorporated using a dual coaxial probe feed technique with equal amplitude and 90-degree phase shift. An antenna array is simulated at a spacing of 0.50λ, 0.55λ, and 0.60λ. Improved Isolation is achieved at a spacing of 0.55λ. The proposed antenna is simulated using HFSS13.0v at 3.7-GHz frequency and fabricated on a Rogers RT/duroid 5880. Designed antenna have an impedance bandwidth of 160 MHz (at S11 = −10 dB), gain of 4.97 dB per port, and axial ratio of 0.27 (<3 dB). The inter-element spacing of 1 × 4 antenna arrays is analyzed using HFSS so that Isolation will be greater than 20 dB. Measured and simulated results are found in good agreement.

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Authors and Affiliations

  1. Department of Electronics and Telecommunication Engineering, College of Engineering, Ambajogai, Beed, Maharashtra, India

    Ravindra S. Bakale

  2. Department of Electronics and Telecommunication Engineering, DBATU Technological University, Lonere, Raigad, India

    Anil B. Nandgaonkar & S. B. Deosarkar

  3. MIT College of Engineering Pune, Pune, India

    R. Bhadade

Authors
  1. Ravindra S. Bakale
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  2. Anil B. Nandgaonkar
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  3. S. B. Deosarkar
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  4. R. Bhadade
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Editor information

Editors and Affiliations

  1. Department of Electronics and Telecommunications Engineering, Dr. Babasaheb Ambedkar Technological University, Lonere, India

    Brijesh Iyer

  2. Department of Electronics and Computer Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India

    Debashis Ghosh

  3. Department of Automatics and Applied Software, Aurel Vlaicu University of Arad, Arad, Romania

    Valentina Emilia Balas

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Bakale, R.S., Nandgaonkar, A.B., Deosarkar, S.B., Bhadade, R. (2022). Circularly Polarized 1 × 4 Antenna Array with Improved Isolation for Massive MIMO Base Station. In: Iyer, B., Ghosh, D., Balas, V.E. (eds) Applied Information Processing Systems . Advances in Intelligent Systems and Computing, vol 1354. Springer, Singapore. https://doi.org/10.1007/978-981-16-2008-9_45

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