Network model of a 5G MIMO base station antenna in a downlink multi-user scenario
Paper i proceeding, 2018

A system level network model of a 5G base station antenna (BSA) with massive multiple-input multiple-output (MIMO) capabilities is presented that incorporates antenna mutual interaction and signal processing aspects. The combined transmitter-channel-receiver in such a system is modeled by cascading Z-matrices to interrelate the transmitter and receiver port voltages/ currents to one another. The developed model is then subjected to the zero-forcing (ZF) beamforming algorithm to compute the per-antenna transmit power for a specific minimum signal level at the receiver as well as the required BSA effective isotropic radiated power (EIRP). The presented initial results show that in a line-of-sight (LOS) environment the required EIRP to achieve a 1 Gbps bitrate user link in a 15-200 m coverage ranges from 25-48 dBm, which increases to 31-54 dBm after incorporating first-order mutual coupling effects among the BSA elements.

Base station antenna


Network theory

Massive multiple-input multiple-output (MIMO)


Navid Amani

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Rob Maaskant

Technische Universiteit Eindhoven

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Andres Alayon Glazunov

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Marianna Ivashina

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

IET Conference Publications

Vol. 2018 CP741

12th European Conference on Antennas and Propagation, EuCAP 2018
London, United Kingdom,

Silicon-based Ka-band massive MIMO antenna systems for new telecommunication services (SILIKA)

Europeiska kommissionen (Horisont 2020), 2016-09-01 -- 2020-08-31.


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