Analysis of nonlinear distortion in phased array transmitters
Paper in proceeding, 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
Nonlinear distortion
Phased array antennas
Power amplifiers
5G
Author
Christian Fager
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
Katharina Hausmair
Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner
Koen Buisman
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
K. Andersson
Ericsson Sweden
E. Sienkiewicz
Ericsson Canada
David Gustafsson
Ericsson Sweden
Proceedings of the 2017 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, INMMiC 2017
7927314
978-1-5090-5862-4 (ISBN)
Subject Categories (SSIF 2011)
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/INMMIC.2017.7927314
ISBN
978-1-5090-5862-4