Slow-wave propagation lines on nanowire membranes

An IMEP-LAHC research team has developed a new type of slow-wave propagation line for circuits operating at millimetric and radio frequencies (3 GHz to 300 GHz). The lines are fabricated in a clean room and made of a metallic nanowire membrane enclosed in an aluminum oxide substrate. They range in thickness between 50 µm and 1 mm.
This type of nanowire membrane is already used in molecule filtration. It has all the advantages of a slow-wave line: it can cut circuit size by a factor of two or three; it is cheaper than a conventional microstrip line; and it performs better thanks to a higher quality factor. The research team has filed a patent for its invention.

Contact: philippe.ferrari@ujf-grenoble.fr

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