Near-field focusing using phased arrays with dynamic polarization control

Near-field focusing using phased arrays with dynamic polarization control

Myers, N.J. (TU Delft Team Nitin Myers)
Aslan, Y. (TU Delft Microwave Sensing, Signals & Systems)
Joseph, G. (TU Delft Signal Processing Systems)

2022

Phased arrays in near-field communication allow the transmitter to focus wireless signals in a small region around the receiver. Proper focusing is achieved by carefully tuning the phase shifts and the polarization of the signals transmitted from the phased array. In this paper, we study the impact of polarization on near-field focusing and investigate the use of dynamic polar-ization control (DPC) phased arrays in this context. Our studies indicate that the optimal polarization configuration for near-field focusing varies spatially across the antenna array. Such a spatial variation motivates the need for DPC phased arrays which allow independent polarization control across different antennas. We show using simulations that DPC phased arrays in the near-field achieve a higher received signal-to-noise ratio than conventional switched- or dual-polarization phased arrays.

Near-field
focusing
dynamic polarization control
beamforming

http://resolver.tudelft.nl/uuid:5dde0ae2-c00c-4999-9387-e0679212d411

IEEE

2023-04-18

978-90-827970-9-1

Proceedings of the 30th European Signal Processing Conference (EUSIPCO 2022)

30th European Signal Processing Conference, 2022-08-29 → 2022-09-02, Belgrade, Serbia

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

conference paper

© 2022 N.J. Myers, Y. Aslan, G. Joseph