Analysis of nonlinear distortion in phased array transmitters
Paper in proceedings, 2017

This paper investigates nonlinear distortion effects in active antenna phased array transmitters. Using a nonlinear modeling technique, the joint interactions between power amplifiers and antennas are investigated in detail. Numerical simulations based on a 28 GHz GaN MMIC PA and a 64-element antenna array are used to exemplify the use of the proposed technique in a typical 5G application. The results show that the antenna mutual coupling will cause the individual PA compression characteristics and hence the far field distortion to depend significantly on beam steer angle.


Active antennas

Power amplifiers

Nonlinear distortion

Phased array antennas


Christian Fager

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Katharina Hausmair

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Koen Buisman

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

K. Andersson

Ericsson AB

E. Sienkiewicz

Ericsson Canada

David Gustafsson

Ericsson AB

Proceedings of the 2017 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, INMMiC 2017


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Other Electrical Engineering, Electronic Engineering, Information Engineering





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