A 250 GHz sub-harmonic mixer design implemented in EBG technology

The design that is presented in this paper corresponds to a sub-harmonic mixer with an RF frequency around 250 GHz and combines conventional and EBG technologies. In this design an EBG woodpile structure was used as substrate for a dipole antenna, improving its radiation features, whereas the local oscillator (LO) feeding waveguide is a metallic rectangular waveguide. Although in order to take full advantage of this technology and to avoid losses resulting from the transitions between different technologies, the whole system should be completely realised using EBG technology, this is a first step towards a fully integrated EBG receiver.