Millimeter-wave Hybrid Circulators
Micro Harmonics has been awarded a NASA Phase I SBIR contract for the development of an all new hybrid circulator for millimeter-wave (MMW) applications. The contract runs from July 2020 through December 2020. In the MMW, the dominant circulator topology is the Y-junction. There are very few commercial Y-junction circulators available above 100 GHz and those tend to have bandwidths near 1-2 GHz. Our hybrid circulator is not a Y-junction and can in theory cover a full rectangular waveguide band (e.g. 110-170 GHz) with inherently high isolation between the Tx and Rx ports. The initial prototype will be designed to cover the band from 150 GHz to 200 GHz. A provisional patent has been filed.