Intra-Array Coupling Estimation for MIMO Transceivers Utilizing Blind Over-The-Air Measurements
Paper i proceeding, 2019

A new technique for the estimation of coupling between array elements in MIMO transceivers is presented. The estimation method is founded on subsequent transmission and over-the-air (OTA) reception between the array elements, when the transmitter's characteristics are unknown. The method enables accurate on-line characterization of the behavior of the array in terms of coupling for a complete system with PAs and antennas connected. The method is validated via OTA measurements on a four-element array in a MIMO transmitter configuration. The results demonstrate that the estimated couplings with the proposed technique are similar to the ones obtained from S-parameter measurements with deviations reflecting the operation with antennas and PAs connected. The proposed intra-array coupling estimation facilitates practical OTA measurement-based modeling and linearization of MIMO transmitters.

crosstalk

mutual coupling

antenna coupling

behavioural modeling.

power amplifier

MIMO transmitter

Författare

Sara Hesami

Maynooth University

Sina Rezaei Aghdam

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Christian Fager

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik, Mikrovågselektronik

Thomas Eriksson

Maynooth University

Ronan Farrell

Maynooth University

John Dooley

Maynooth University

IEEE MTT-S International Microwave Symposium Digest

0149645X (ISSN)

Vol. 2019-June 468-471 8700777

2019 IEEE MTT-S International Microwave Symposium, IMS 2019
Boston, USA,

Ämneskategorier

Strömningsmekanik och akustik

Signalbehandling

Annan elektroteknik och elektronik

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Senast uppdaterat

2019-12-06