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Conception of a 90-GHz metamaterial-based coupler for astrophysical applications |
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| Authors: | Alassane Sidibe Frédérique Gadot Benoit Belier Guillaume Bordier Davide Cammilleri Adnan Ghribi Andrea Tartari Michel Piat Joseph Martino François Pajot Faouzi Boussaha |
| Affiliation: | 1. IEF, UMR, 8622, University Paris Sud, Orsay, France 2. APC, UMR 7164, University Paris Diderot 7, Paris, France 3. IAS, UMR, 8617, University Paris Sud, Orsay, France 4. Observatoire de Paris, LERMA, Paris, France |
| Abstract: | Designed for astrophysical applications, this coupler must be as small as possible to be integrated in a low temperature superconducting detection chain. By using metamaterials, dimensions can be reduced and performances enhanced compared with a conventional coupler. The novelty of the work presented in this paper is a coupler that operates at millimeter waves (W band) and cryogenic temperatures (4 K) for astrophysics applications and more precisely for the detection of the cosmological microwave background radiation. |
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