Simulation Based Uncertainty Analysis for Radiation Pattern Measurements Using an Active Radar Module

Antenna Measurement Techniques Association Symposium (AMTA), pp. 1–5

Abstract

Antennas fully integrated in radar systems or even on the chip packages cannot be measured with a conventional antenna measurement system as there is no access to the antenna feed point. The two-way radiation pattern of a frequency modulated continuous wave (FMCW) radar system can be measured using the transmit and receive module of the radar itself while measuring against a reflector. Still, the measurement uncertainty differentiates from conventional antenna measurements, and detailed studies are missing. The uncertainty factors introduced by the mechanical system and the reflectors themselves like the size of the reflector and the mechanical misalignment of the reflector and antenna under test (AUT) are investigated within this study on the basis of simulations. As reference antenna the simulation model of a scalar feed horn antenna and a plate, a dihedral and a trihedral reflector are used. The results show an overall stable behavior and a low error for the evaluated mechanical misalignments.

Authors 2

1. A. C. Granich Aachen Institute of High Frequency Technology

   RWTH Aachen University

   Affiliation as printed

   Institute of High Frequency Technology, RWTH Aachen University,Aachen,Germany,52074

2. Dirk Heberling Aachen Institute of High Frequency Technology

   RWTH Aachen University · Fraunhofer Institute for High Frequency Physics and Radar Techniques

   Affiliation as printed

   Institute of High Frequency Technology, RWTH Aachen University,Aachen,Germany,52074

   Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR, Wachtberg, Germany