TY - GEN
T1 - Errors and Prerequisites of the Short-Time Measurement and Transformation of Continuously Modulated Fields
AU - Faul, Fabian T.
AU - Eibert, Thomas F.
N1 - Publisher Copyright:
© 2021 AMTA.
PY - 2021
Y1 - 2021
N2 - Near-field far-field transformations (NFFFTs) are usually performed for time-harmonic fields. In cases where insitu antenna measurements are required and the antenna under test (AUT) is not accessible for specifically tailored test signals, the need for handling time-modulated fields arises. The short-time measurement (STM) approach offers a way to deal with continuously modulated fields while a time-harmonic NFFFT can be employed. We present results of numerical simulations to demonstrate and characterize the STM approach for the case of a cylindrical measurement geometry as found in UAV-based antenna measurements. We further derive guidelines from the simulation results that describe the applicability of the STM for different measurement situations.
AB - Near-field far-field transformations (NFFFTs) are usually performed for time-harmonic fields. In cases where insitu antenna measurements are required and the antenna under test (AUT) is not accessible for specifically tailored test signals, the need for handling time-modulated fields arises. The short-time measurement (STM) approach offers a way to deal with continuously modulated fields while a time-harmonic NFFFT can be employed. We present results of numerical simulations to demonstrate and characterize the STM approach for the case of a cylindrical measurement geometry as found in UAV-based antenna measurements. We further derive guidelines from the simulation results that describe the applicability of the STM for different measurement situations.
UR - http://www.scopus.com/inward/record.url?scp=85123471819&partnerID=8YFLogxK
U2 - 10.23919/AMTA52830.2021.9620725
DO - 10.23919/AMTA52830.2021.9620725
M3 - Conference contribution
AN - SCOPUS:85123471819
T3 - 2021 Antenna Measurement Techniques Association Symposium, AMTA 2021
BT - 2021 Antenna Measurement Techniques Association Symposium, AMTA 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 Antenna Measurement Techniques Association Symposium, AMTA 2021
Y2 - 24 October 2021 through 29 October 2021
ER -