Macor, AlessandroDe, RijkBillod, Mathieu2015-09-222015-09-222015-09-222014https://infoscience.epfl.ch/handle/20.500.14299/118509A waveguide for transmitting signals at terahertz (THz) frequencies, wherein said waveguide comprises at least a matrix and an insert piece having a waveguide channel, wherein said piece is inserted in said matrix.patentWO2014057469WO201405746949885317