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Dual-Band MIMO Antenna with Enhanced Isolation Using Fractal Isolators

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Advances in Signal Processing and Communication Engineering

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 929))

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Abstract

This paper illustrates the outcome of novel fractal-based geometry of the low-profile multi-input multi-output (MIMO) antenna system with enhanced isolation for 5G mm wave, satellite and defense applications. Four identical fractal-shaped isolators are acquired to lower the coupling between each elements. Each fractal structure is responsible for isolation enhancement between adjacent antenna elements. The proposed four-port MIMO antenna works for 12.1–18.9 GHz for satellite and defense applications and 20.1–30 GHz for the 5G mm wave application allocated by FCC. The simulations are done on the HFSS version 13. The simulation results of different parameters like S parameters, mutual coupling, and gain and radiation pattern are presented. A maximum improvement of 26.6 dB isolation is achieved in the desired frequency band (20.1–30 GHz). The gain of around 4.8 dB and 6.1 dB in 12.4–18.9 GHz and 26 GHz frequency bands, respectively, which gives the proposed antenna excellent diverse performance, and hence, it is suitable for the MIMO applications.

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Correspondence to Akanksha Singh .

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Singh, A., Kumar, A., Kanaujia, B.K. (2022). Dual-Band MIMO Antenna with Enhanced Isolation Using Fractal Isolators. In: Kumar Jain, P., Nath Singh, Y., Gollapalli, R.P., Singh, S.P. (eds) Advances in Signal Processing and Communication Engineering. Lecture Notes in Electrical Engineering, vol 929. Springer, Singapore. https://doi.org/10.1007/978-981-19-5550-1_9

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