A Direct- Conversion Digital Beamforming Array Receiver with 800 MHz Channel Bandwidth at 28 GHz using Xilinx RF SoC

Sravan Pulipati; Viduneth Ariyarathna; Udara De Silva; Najath Akram; Elias Alwan; Arjuna Madanayake; Soumyajit Mandal; Theodore S. Rappaport

doi:10.1109/comcas44984.2019.8958039

arXiv · 1911.09180

A Direct- Conversion Digital Beamforming Array Receiver with 800 MHz Channel Bandwidth at 28 GHz using Xilinx RF SoC

Sravan Pulipati·Viduneth Ariyarathna·Udara De Silva·Najath Akram·Elias Alwan·Arjuna Madanayake·Soumyajit Mandal·Theodore S. Rappaport

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Abstract

This paper discusses early results associated with a fully-digital direct-conversion array receiver at 28~GHz. The proposed receiver makes use of commercial off-the-shelf (COTS) electronics, including the receiver chain. The design consists of a custom 28~GHz patch antenna sub-array providing gain in the elevation plane, with azimuthal plane beamforming provided by real-time digital signal processing (DSP) algorithms running on a Xilinx Radio Frequency System on Chip (RF SoC). The proposed array receiver employs element-wise fully-digital array processing that supports ADC sample rates up to 2~GS/second and up to 1~GHz of operating bandwidth per antenna. The RF mixed-signal data conversion circuits and DSP algorithms operate on a single-chip RF SoC solution installed on the Xilinx ZCU1275 prototyping platform.

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BibTeX RIS

Sravan Pulipati, Viduneth Ariyarathna, Udara De Silva, Najath Akram, Elias Alwan, Arjuna Madanayake, Soumyajit Mandal, Theodore S. Rappaport. 2019-11-20. A Direct- Conversion Digital Beamforming Array Receiver with 800 MHz Channel Bandwidth at 28 GHz using Xilinx RF SoC. https://doi.org/10.1109/comcas44984.2019.8958039

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