SAR Antenna Array Configurations for KA Band Mission
conference paper
A novel sparse layout for the receiving aperture of a Ka-band spaceborne SAR has been designed. The devised array antenna layout allows reducing the number of active controls of 40%, from 10000 to 6000.
The antenna is designed to steer the beam ±10° in elevation and ±2° in azimuth, and satisfies the prescribed pattern mask. In this paper, after briefly recalling the electromagnetic design of the antenna, the arrangement of the electronic layeris described in detail, together with the thermomechanical design and the aspects concerning the accommodation of this sparse SAR array antenna in the satellite bus.
The antenna is designed to steer the beam ±10° in elevation and ±2° in azimuth, and satisfies the prescribed pattern mask. In this paper, after briefly recalling the electromagnetic design of the antenna, the arrangement of the electronic layeris described in detail, together with the thermomechanical design and the aspects concerning the accommodation of this sparse SAR array antenna in the satellite bus.
TNO Identifier
866774
Source title
39th ESA Antenna Workshop on Multibeam and Reconfigurable Antennas for Space Applications 2-5 October 2018, ESTEC, Noordwijk, The Netherlands
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