Outspacing Phased Arrays for mm-wave 5G Base Stations

Emerging applications such as next generation wireless communications at mm-waves require active array antenna systems for meeting the high performance demands. This calls for new power-efficient and linear phased-array concepts. The combination of in-space outphasing of constant-envelope phase-modu...

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Bibliographic Details
Published in2020 14th European Conference on Antennas and Propagation (EuCAP) pp. 1 - 5
Main Authors van Ark, B.G.M., Smolders, A.B., Smulders, P.F.M.
Format Conference Proceeding
LanguageEnglish
Published EurAAP 01.03.2020
Subjects
active phased array
antenna array
Arrays
out-phasing
Phased arrays
Power amplifiers
Reflection coefficient
Security
spatial power combining
Transmitting antennas
Wireless communication
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Summary:Emerging applications such as next generation wireless communications at mm-waves require active array antenna systems for meeting the high performance demands. This calls for new power-efficient and linear phased-array concepts. The combination of in-space outphasing of constant-envelope phase-modulated signals and a beamforming array is a promising architecture. In this paper, the influence of the outphasing configuration on the array factor and Error Vector Magnitude (EVM) is investigated. A prototype at 2.4 GHz was realized and characterized which shows good agreement with the theory. The outspacing array achieves an Error Vector Magnitude (EVM) of 5% without calibration.
DOI:10.23919/EuCAP48036.2020.9135629