Innovative Multi-Feed-Per-Beam Reflector Antenna for Space-Borne Conical-Scan Radiometers
Paper in proceeding, 2018
We present an antenna for use on conical-scan space-borne radiometers in C band and demonstrate that stringent radiometric requirements can be met. The antenna consists of a 5 m offset reflector fed by a focal plane array in a multi-feed-per-beam configuration, so far never used in ocean observation missions. We use distinct element beams and two optimization routines for obtaining element excitation amplitudes and phases, and with either routine, and in both x- and y-polarization, compliant beams, with footprint < 20 km, distance to coast < 20 km and accuracy < 0:25 K, are obtained. These results may pave the way for use of focal plane arrays with digital beamforming in future radiometric ocean observation missions.
Author
Jakob R. de lasson
TICRA
Cecilia Cappellin
TICRA
Knud Pontoppidan
TICRA
Oleg Iupikov
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Marianna Ivashina
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Niels Skou
Technical University of Denmark (DTU)
Benedetta Fiorelli
European Space Research and Technology Centre (ESA ESTEC)
2018 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING
1522-3965 (ISSN)
1729-1730978-1-5386-7102-3 (ISBN)
IEEE-Antennas-and-Propagation-Society International Symposium on Antennas and Propagation / USNC/URSI National Radio Science Meeting
Boston, MA, USA,
Boston, MA, USA,
Subject Categories
Aerospace Engineering
Other Physics Topics
Signal Processing
DOI
10.1109/APUSNCURSINRSM.2018.8609321
ISBN
9781538671023