Design and realization of a Ka band subharmonical mixer using self-designed Schottky diodes

This paper presents the design and realization of a Ka band subharmonically pumped mixer using self-fabricated Schottky diodes. First, the design and fabrication of GaAs Schottky diode with the cutoff frequency of 650 GHz was introduced. Then the mixer´s design was presented which consists of two parts: design of the passive linear part and optimization of the total mixer. Finally, the fabricated mixer and measured results was given, the conversion loss of which shows the validity of the fabricated Schottky diodes.