The market evolution of SAR-based Earth Observation systems requires an increase of SAR performance in terms of resolution, together with radiometric parameters quality. Based on the state-of-the-art of present technologies, this objective would be achieved at satellite level by increasing the SAR antenna area with the consequence of increasing the spacecraft mass and size. In order to avoid an increase of costs and complexity due to this inefficient trend of mass and volume (limiting the access to orbit due to launcher envelope constraints and increasing the complexity of in-orbit maneuvers due to the larger SAR antenna size), it is necessary to develop suitable technologies able to enhance the RF transmitted power density and to achieve better SAR performances without increasing, and possibly reducing, the SAR antenna size and mass. The purpose of the provided solution is to increase the RF transmitted power density, in order to enhance the SAR performance without increasing the antenna size and mass; such objective is achieved by using highest efficiency power amplifier and electronics technologies and studying the thermal drainage solutions that are needed to solve the potential thermal constraints due to the increase of the dissipated power density.
Typical Customer needs are summarized in the table below, where the “Pain” associated to the Need and the “Gain” offered by the HE-R1000 product are also reported.
Institutional entities of worldwide emerging countries not yet able to sustain an autonomous national space policy.
The EFE Plus is a key element of the active section of the antenna of the HE-R1000 product, an end-to-end Earth Observation System consisting of:
The key features of the HE-R1000 product are:
The HE-R1000 product is intended:
Distinctive features of the HE-R1000 product:
Kick-Off meeting held on September 9, 2022. Requirements definition phase in progress, Requirement Review scheduled for December 7, 2022.
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