Prediction of smart antenna transmitter characteristics using a new behavioral modeling approach
Paper i proceeding, 2014

A new technique for analysis of nonlinear effects in smart antenna array transmitter systems is presented. The analysis is founded on a new type of dual-input circuit behavioral model which allows nonlinear effects caused by antenna mutual-coupling and mismatch to be predicted under realistic wideband signal excitations. The model formulation enables direct interface with multi-port antenna S-parameters and detailed prediction of radiated field characteristics. The method is validated by over-the-air WCDMA measurements on a dual-antenna 2.14 GHz MIMO transmitter. The results demonstrate that antenna mutual coupling may lead to significant nonlinear distortion that cannot be compensated for by conventional linearization techniques.

Smart antenna

power amplifiers

distortion

MIMO

Författare

Christian Fager

Gigahertzcentrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Xavier Bland

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Gigahertzcentrum

Katharina Hausmair

Gigahertzcentrum

Chalmers, Signaler och system, Kommunikations- och antennsystem

Jessica Chani Cahuana

Chalmers, Signaler och system, Kommunikations- och antennsystem

Gigahertzcentrum

Thomas Eriksson

Gigahertzcentrum

Chalmers, Signaler och system, Kommunikations- och antennsystem

IEEE MTT-S International Microwave Symposium Digest

0149645X (ISSN)

6848309

Ämneskategorier

Signalbehandling

DOI

10.1109/MWSYM.2014.6848309

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Senast uppdaterat

2019-07-24