Enabling spatial diversity and beamsteering with reduced RF-chains using reconfigurable transmitarrays

João R. Reis; Caldeirinha, Rafael F. S.; Fernandes, Telmo R.; Hammoudeh, Akram

http://hdl.handle.net/10400.8/13728

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Authors

João R. Reis

Caldeirinha, Rafael F. S.

Fernandes, Telmo R.

Hammoudeh, Akram

Abstract(s)

This manuscript introduces a new vision on the implementation of spatial diversity with beamsteering capability, by suppressing the typical beamforming networks of antenna phased arrays and replace them by Reconfigurable Transmitar- rays. Consequently, the radio frequency components, i.e. RF- chains that compose such systems, were replaced by a device with the capability to perform two-dimensional beamsteering relying on single antenna source, hence reducing the number of associated RF hardware in comparison with traditional phased array systems. By spatially distributing side-by-side more than one device, spatial diversity with beamsteering is enabled with an estimated reduction of 1:8 in the number of associated RF-chains. This new concept clearly demonstrates its merit by directly reducing the implementation costs„ RF-chain components and increasing the energy efficiency, specially in larger systems.

Keywords

spatial diversity antenna antenna arrays beam- forming beamsteering transmitarray RF-chain

URI

http://hdl.handle.net/10400.8/13728

Citation

J. R. Reis, R. F. S. Caldeirinha, T. R. Fernandes and A. Hammoudeh, "Enabling spatial diversity and beamsteering with reduced RF-chains using reconfigurable transmitarrays," 2017 11th European Conference on Antennas and Propagation (EUCAP), Paris, France, 2017, pp. 3022-3025, doi: 10.23919/EuCAP.2017.7928529