Highly-compact fibre-optic package for 30–300GHz wireless transmitter modules

In this paper, we present a highly-compact fibre-optic package for 30-300 GHz wireless transmitter modules with integrated antenna. The overall module size is only 22 x 17 x 8.5 mm and comprises fibre-chip coupling, electrical beam forming as well as techniques for low millimetre-wave losses. FEM-simulations show that the operational frequency range of the package is at least within 30-300 GHz. Furthermore, the package allows a high flexibility in terms of possible chip dimensions. Using this approach, external mm-wave components like antennas or cables can be avoided thus offering a low-cost small-scale solution. A small-series of the presented package has already been constructed. Results with in-house fabricated photomixers with integrated antenna are further presented.