Comparison of echo reduction techniques for one-single cut antenna measurements
- Resource Type
- Conference
- Authors
- Morales, Manuel Jose Lopez; Saccardi, Francesco; Castaner, Manuel Sierra; Foged, Lars J.
- Source
- 2016 10th European Conference on Antennas and Propagation (EuCAP) Antennas and Propagation (EuCAP), 2016 10th European Conference on. :1-5 Apr, 2016
- Subject
- Fields, Waves and Electromagnetics
Antenna measurements
Filtering
Time-domain analysis
Dipole antennas
Time measurement
Frequency measurement
Reflection
antenna measurement
semi-anechoic chamber
echo reduction techniques
time filtering
modal filtering
measurements
offset
single-cut measurements
- Language
This paper presents a comparison between two different echo reduction techniques applied to one-single cut antenna measurements. These techniques are based on modal filtering and time filtering. The first technique uses a post-processing of the far field one-single cut so as to obtain a modal expansion of cylindrical modes and to cancel the effect of spurious signals. The second one is based on filtering echoes out in time domain by applying a Fourier Transform to get a signal in which some spurious contributions can be filtered out. Such techniques are applied on the single cut measurements of a wideband horn (MVI SH2000) performed in a semi-anechoic chamber and on the measurements of a dipole (MVI SD1900) performed in a MVG spherical multi-probe system (StarLab). A smart combination of both methods is also applied in order to improve the results of the post processing with respect each different method.