Evaluation of a simplified Random-LOS measurement setup for characterizing antennas on cars
Paper i proceeding, 2017

The automotive industry is in need of reliable, accurate yet cost-effective over-the-air (OTA) characterization methods of the communications systems installed on cars. This paper analyses the scattering contributions to spurious variations of receive signals in a Random Line-of-Sight (Random-LOS) measurement setup in a semi-anechoic chamber. Figures of merit are the delay spread and the dynamic variations of the receive signals. Transmission measurements were performed on a two-element LTE shark-fin antenna mounted on the roof of a Volvo XC90. We show that by using a vertically oriented uniform linear array, with vertically polarized bowtie antenna elements, we can efficiently remove the unwanted ground reflection present when a single bowtie antenna is used. We also show that the improvement depends on the position of the antennas mounted on the car as well as on the azimuthal angle.

measurements

antenna

RLOS

Random Line-Of-Sight

vehicular

anechoic chamber

Författare

Madeleine Schilliger Kildal

Signaler och system, Kommunikationssystem, informationsteori och antenner, Antennsystem

Andres Alayon Glazunov

Signaler och system, Kommunikationssystem, informationsteori och antenner, Antennsystem

Jan Carlsson

Chalmers University of Technology

Provinn AB

A. Majidzadeh

Volvo

2017 11th European Conference on Antennas and Propagation, EUCAP 2017

3007-3011

Ämneskategorier

Kommunikationssystem

DOI

10.23919/EuCAP.2017.7928420

ISBN

978-8-8907-0187-0