Development of An Improved Sub-harmonic Mixer Based on Planar Schottky Diodes at 94 Ghz

摘要

Accompany with the rapid development of millimeter-wave science and technology, sub-harmonically pumped mixers has received more and more attention. In this study, a balanced sub-harmonic fix-tuned mixer is designed based on combination of linearonlinear circuit simulation. It is realized based on rogers substrate process to minimize the cost and simplify the assembly. The mixer works in the 91-98 GHz band with SSB conversion loss 8~11 dB when pumped with 6 mW of local oscillator power and minimum SSB conversion loss of 8 dB is measured at 93 GHz. The measured performance of this mixer is sufficient and robust for the foreseen applications.