Development of a sub-harmonic mixer working at 220 GHz

This paper describes the design and development of a heterodyne sub-harmonic receptor working at Sub-mm wave frequencies, which in this case it corresponds with 220 GHz. The design has been realized with different electromagnetic programs such as Ansoft HFSS and Ansoft Designer. Along this paper several modifications are going to be studied with the purpose of achieving a good prototype in terms of good adaptation at the OL and RF ports and low noise temperature and conversion loss.