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5G Primer for MIMO/Phased-Array Antennas

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MIMO and Beam-Steering Modeling for 5G New antenna geometries such as MIMO/massive MIMO and integrated phased arrays will be required for 5G. As Figure 13 shows, it is important to remember that MIMO does not go from a single transmit antenna to a single receive antenna, but rather the output goes to multiple receivers, making 5G antenna design very complex. Figure 13: MIMO and beam-forming array antenna configurations for 5G MIMO and Beam-Steering Model Technology The potential of massive MIMO will bring over 10X in capacity improvement and over 100X reduction in power consumption. Figure 14 shows how MIMO antenna arrays enable more efficient transmission of power with higher capacity. Figure 14: MIMO antenna arrays enable more efficient transmission of power with higher capacity. (Source: IEEE Communications Magazine) As a result of the complexities of 5G antenna design, RF system engineers will need to include the antenna characteristics in their simulations to correctly design the entire transmit/receive system. This section presents several practical examples commonly encountered by the RF systems engineer and showcases advances in MIMO and beam-steering model technology within AWR VSS system design software. Detailed examples of the models being utilized in real-world systems are shown, including: f Individual antenna patterns for array models f Coupling of nearby elements f Modeling of different array geometries, including imperfections and defects of elements f Active impedances observed at each element of the array f Different RF links for each element 5G Primer for MIMO/Phased-Array Antennas 12 www.cadence.com/go/awr

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