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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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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DOI: https://doi.org/10.1007/978-981-16-2008-9_45
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