C. Vázquez, A. Hadarig, S. Ver Hoeye, R. Camblor, Miguel Fernández, G. Hotopan, L. Alonso, F. Las-Heras
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Millimetre wave transmitter based on a few-layer graphene frequency multiplier
In this work, a millimetre/submillimetre wave transmitter prototype integrating a graphene based frequency multiplier and a diagonal horn antenna is presented. With a driving signal in the WR-28 frequency band (26.5-40 GHz), an output signal in the WR-3 frequency band (220-330 GHz) is generated and radiated. A prototype has been manufactured using high precision 3D printing techniques. The performance with multiplication orders 5, 7 and 9 has been compared, obtaining maximum power levels of about -45 dBm, measured at a distance of 250 mm. Measured radiation patterns are also presented.