Multiple CATR Reflector System for Multiple Angles of Arrival Measurements of 5G Millimeter Wave Devices

Corbett Rowell, Benoit Derat, Adrian Cardalda-Garcia

Research output: Contribution to journalArticlepeer-review


This paper presents a novel method using multiple compact antenna test range (CATR) reflectors to perform simultaneous multiple angle measurements for 5G devices that are capable of beam-forming in the millimeter wave frequency range. Four CATR reflectors and their respective feed antennas are arranged on a planar semi-circle arc with the device under test placed on a positioner at the center of the arc. This arrangement is designed to generate four planar wavefronts with different incidences, realizing up to five pairs of angular spreads or four switched/simultaneous angles of arrival. The objective of this setup is to reproduce configurations involving multiple base-stations radiating from different directions. The initial target application is radio resource management (RRM) testing, where the execution of mobility procedures and radio link monitoring of a 5G millimeter wave device are evaluated. The reflectors create far-field conditions at the device under test for quiet zones up to 30 cm in diameter inside a portable system with a footprint of 3.25 × 1.4 meters. The applicability of the approach to RRM testing is demonstrated through measurements, performed with both sinusoidal and modulated signals, using horn antennas and commercial 5G devices.

Original languageEnglish
Article number9261325
Pages (from-to)211324-211334
Number of pages11
JournalIEEE Access
Publication statusPublished - 2020


  • 5G mobile communication
  • MIMO
  • antenna measurements
  • millimeter wave communications
  • mobile radio mobility

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

Fingerprint Dive into the research topics of 'Multiple CATR Reflector System for Multiple Angles of Arrival Measurements of 5G Millimeter Wave Devices'. Together they form a unique fingerprint.

Cite this