Numerical investigations on the quasi-stationary response of antennas to wideband LFMCW excitation

Publikationstyp
Conference Paper
Publikationsdatum
2014-05
Sprache
English
Author
Gardill, Markus 
Kay, Dennis 
Weigel, Robert 
Kölpin, Alexander orcid-logo
TORE-URI
http://hdl.handle.net/11420/6653
Start Page
969
End Page
973
Article Number
6952333
Citation
European Signal Processing Conference: 6952333 (2014-05)
Contribution to Conference
European Signal Processing Conference 2014 
Scopus ID
2-s2.0-84911871804
In this contribution, we numerically investigate if the quasi-stationary (QS) response is a valid approximation for the response of antennas excited by wideband linear-frequency modulated continuous waveforms. We give results for two idealized example systems, showing how the validity of the QS response is dependent on the system's resonant behavior. It will be shown that the error between exact output and QS response is approximately linearly dependent on the sweep-rate of the linear-frequency modulated excitation. We then conduct our simulations for a realistic wideband radar system operating from 5 GHz to 8 GHz and using impulse responses extracted from electromagnetic simulations of a dipole and a biconical antenna.
Schlagworte
Antennas
FMCW
Quasi-Stationary