Evaluation of a Random Line-of-Sight Over-the-Air Measurement Setup at 28 GHz
Artikel i vetenskaplig tidskrift, 2021

OTA measurement techniques have, and will continue to have, a key role in evaluating the performance of modern antennas and wireless devices. The new random line-of-sight (random-LOS) measurement setup, offers the evaluation of the OTA performance of different types of devices, for example car antennas and small wireless devices in the random-LOS environment. A plane wave is synthesized in the test zone of the OTA setup, where the far-field of a radio base station can be emulated. We present measurements and simulations of the random-LOS OTA measurement setup employing a reflector antenna, with a dual polarized linear array feed, operating at the 28 GHz band. An analysis of the power and phase field distributions in a cylinder and a circular test zone are presented. The computed standard deviation of the power distribution is approximately 1 dB within a circular test zone, with a diameter of 0.3 m. The standard deviation of the phase, within the same test zone, is less than 15 °. The radiation patterns of a horn antenna have been measured in the random-LOS measurement setup and shown a good agreement with the theoretical values.

reflector antenna

OTA

anechoic chamber

automotive communication

Random-LOS

Författare

Madeleine Schilliger Kildal

RanLOS AB

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Sadegh Mansouri Moghaddam

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Jan Carlsson

RanLOS AB

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Provinn AB

Jian Yang

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Andres Alayon Glazunov

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Universiteit Twente

IEEE Transactions on Antennas and Propagation

0018-926X (ISSN)

Vol. In Press

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/TAP.2021.3076273

Mer information

Senast uppdaterat

2021-06-22