Hybrid Beamforming for Massive MIMO Phased Array Systems

This white paper illustrates a process to design hybrid beamforming in massive MIMO antenna arrays for 5G, using features available with MATLAB® and Simulink®.

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Taking a 64 x 64 element, 66 GHz millimeter wave (mmWave) design as an example, we show a strategy to model antenna arrays and partition beamforming operations between the digital and RF domains, including:

  • Specifying an array and visualizing the geometry, 2D and 3D directivity, and grating lobes

  • Importing antenna patterns to increase model fidelity

  • Mitigating the effects of array element imperfections, element and subarray failures, and mutual coupling

  • Designing array architectures and generating RF phase shifts and digital complex weights

  • Measuring performance of link-level designs using high-fidelity, RF/digital multidomain simulations

  • Modeling multi-user beamforming scenarios

  • Assessing tradeoffs between performance, power dissipation, and implementation complexity

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