The largest antenna tested at ESA’s Hertz radio station is this 5-m diameter transponder antenna, which works down to earth to help calibrate the Biomass mission, which will map the forests. all over the Earth.
“This is a very difficult test in terms of the size of the antenna and the lowest P-band frequency that Biomass will use, which will allow it to penetrate the canopies of the forest to get the most. each stick, ”explains ESA antenna engineer Luis. Rolo, is watching the test announcement.
“Usually when we test a large satellite here, its antenna is much smaller, usually between 0.5 and 2 meters in circumference. But this whole building has an antenna radiating in its own right, its own. sides close to the walls of the office.
“The nature of this testing process is to show some aspects of the office that we haven’t seen before, even after many years of testing. But we’ve done some kind of testing. about the large amounts of revenue from different locations in the office, combined with the careful interpretation of natural results, to obtain the most accurate results. “
Part of ESA’s technology heartland in the Netherlands, the ‘Hybrid European Radio Frequency and Antenna Test Zone’ has been closed to metal from external influences. Its inner walls are lined with ‘anechoic’ foam pyramids that secure the radio, allowing the radio to be tested without negative thoughts.
Its name begins with ‘Hybrid’ because the studio can evaluate radio signals from antennas in local ‘near-field’ terms or in ‘far-field’ terms, as if the term had passed. marking thousands of kilometers of space.
Due for release next year, Biomass will install a 12-m large display screen that will record P-band radar signals in order to create a five-year database of the Earth’s trees.
Founded in Australia, this transponder will be connected to a telephone tracking system inside a shield radome, allowing it to track a Biomass satellite moving in the sky. The transponder antenna displays radar signals from Biomass in the background, to help ensure that the missionary is operating properly. The transponder was built by Italian company IDS.