C-band solid state dual polarization T/R modules for airborne SAR systems
conference paper
The use of distributed power in a, on a phased array antenna based, SAR system offers new possibilities
for the system operation. As a preparation for future spaceborne SAR systems using solid state transmitters
with electronically steerable phased array antenna, the PHARUS system has been constructed.
The system is installed on a Cessna Citation II aircraft. The system will have a number of user
selectable modes for polarizations (one to fully polarimetric), resolution (4 meter / 4 looks to 16 meter
/ 20looks), altitude (5 km to 12 km), swath width (4.4 km, high resolution, polarimetric until 20 km,
low resolution, one polarization) and incidence angle range. The different features within a mode are more
or less coupled due to signal to noise limitations and maximum data rate. The radar is set up in such a way
that extensions in a later stage are possible. For example a larger bandwidth or the enlargement of the
antenna including the number of T/R modules. This paper describes the dual polarization T/R
module design, including the module charactenzation for calibration purposes.
for the system operation. As a preparation for future spaceborne SAR systems using solid state transmitters
with electronically steerable phased array antenna, the PHARUS system has been constructed.
The system is installed on a Cessna Citation II aircraft. The system will have a number of user
selectable modes for polarizations (one to fully polarimetric), resolution (4 meter / 4 looks to 16 meter
/ 20looks), altitude (5 km to 12 km), swath width (4.4 km, high resolution, polarimetric until 20 km,
low resolution, one polarization) and incidence angle range. The different features within a mode are more
or less coupled due to signal to noise limitations and maximum data rate. The radar is set up in such a way
that extensions in a later stage are possible. For example a larger bandwidth or the enlargement of the
antenna including the number of T/R modules. This paper describes the dual polarization T/R
module design, including the module charactenzation for calibration purposes.
TNO Identifier
94924
Publisher
VDE-Verlag GMBH
Source title
EUSAR '96 - European Conference on Synthetic Aperture Radar, 26-28 March 1996, Koenigswinter, Germany
Place of publication
Berlin
Pages
543-546
Files
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