Research papers

10 m reflector antenna for a conicalscan passive microwave radiometer in C band is proposed. The reflector is an offset paraboloid in light mesh technology excited in a multi-feed-perbeam configuration, so far never used in Earth observation missions. The instrument…

In this work we describe the design and operation of a scatterometer to be used at the European Space Agency. The instrument has the purpose to characterize smooth as well as rough materials, in transmission and reflection in the 50-750…

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…

The shaping of reflector antennas in geostationary orbit to attain contoured beams on earth is most often done by solving a minimax optimization problem based on a Physical Optics analysis of the reflector antenna gain, cx-pol, e.t.c. Unfortunately, this optimization…

Reflectarray antennas for space applications involve a large number of elements with varying sizes to be printed on a dielectric substrate. Due to the manufacturing process, the fabricated reflectarray might have significant deviations from the desired design. This paper demonstrates…