How did you use FEST3D in your research project?įEST3D is the ideal tool to simulate such kind of devices based on the concatenation of waveguide sections, and we can obtain the S-parameters of the filter very quickly and reliably. According to the current ECSS document, the filter in the paper should handle at least 70 kW in simulation for testing to be considered unnecessary. ![]() Getting such high-power handling capability, such as 100 kW in an analysis, theoretically avoids the use of this “just-in-case” testing to check whether the filter will withstand the conditions in a real working situation in space. The European Cooperation for Space Standardization (ECSS) – Multipaction design and test- is the document that the industry uses to conduct such testing campaigns. How does this chirping technique help engineers improve their filter designs?Ĭurrently, although very good high-power analysis tools such as SPARK3D or CST PARTICLE STUDIO® exist, the space industry usually conducts also a costly testing campaign of the satellite parts before they are launched into space to check that everything works fine. In this paper, we surpassed our previous results, getting a filter to handle more than 100 kW, while the equivalent classical waffle-iron filter handles only 0.15 kW (!!!) before the multipactor effect appears and ruins communication. ![]() This avoids the use of many individual low-pass filters, one per channel, as it is usually done now. TESAT and UPNA have successfully developed a new standard of output lowpass filter for the communications satellite payload, which withstands the combined power of all the satellite channels and cleans all the channel signals at the same time from spurious responses. The filter in this paper is the result of a multi-year collaboration between TESAT Spacecom GmbH and the Microwave Components Group at UPNA in the framework of several contracts and ESA projects. What is the challenge that this new filter method addresses? Miguel Laso to learn more about his team’s award winning paper, “Chirping Techniques to Maximize the Power-Handling Capability of Harmonic Waveguide Low-Pass Filters.” Every year, we select three papers and one short paper to honor and we are excited to share some of the details behind the winning research. In December, we announced the winners of our CST University Publication Award.
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