A process for constructing a satellite platform comprising a plurality of radiating elements of the electromagnetic radiation receiver or transmitter type, including at least one transmitter radiating element, the process comprising:
- determining at least one predominant coupling path between at least two of said radiating elements;
- determining at least one region of interest on said satellite platform to decrease electromagnetic coupling between the radiating elements so that said region of interest intersects said predominant path;
- obtaining at least one block of a material electromagnetically absorbing in a frequency band of interest to decrease electromagnetic coupling between the radiating elements comprising at least one act of impregnating a cellular material with an electromagnetic absorbing filled resin;
- and
- implementing the at least one block of absorbing material in the at least one region of interest,
- wherein the determining the at least one predominant coupling path comprises calculating an electromagnetic coupling in the absence of absorbing material and comparing the electromagnetic coupling with a predetermined threshold to decide to implement a predetermined absorption treatment,
- and wherein the obtaining the at least one block of electromagnetic absorbing material comprises determining a target permittivity for the at least one block of electromagnetic absorbing material according to the predetermined absorption treatment.