Abstract
Accompany with the rapid development of millimeter-wave science and technology, sub-harmonically pumped mixers have received more and more attention. One important issue of the mixer is its parasitic parameters of the diode structure play an important role in the conversion loss. Therefore, the influence of parasitic parameter on the performance of the mixer is studied by extraction of parasitic parameter of antiparallel GaAs Schottky diode in this research. Based on the research, a mixer working in the 91–98 GHz band is designed and fabricated based on rogers substrate process. The single side band(SSB) conversion loss is about 8 ∼ 11 dB when pumped with 6mW of local oscillator power and minimum SSB conversion loss of 8 dB is measured at 93 GHz. The measured performance of the proposed mixer is sufficient and robust for the foreseen applications.
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