Voltage-Tunable Thin Film Graphene-Diode-Based Microwave Harmonic Generator
IEEE Microwave and Wireless Components Letters, vol. 31, pp. 733–736
Abstract
This work presents the design, implementation, and characterization of the first thin-film integrated tunable microwave harmonic generator. The design is realized by exploiting the nonlinearity of four chemical vapor deposition (CVD) graphene-based diodes arranged in a nonlinear transmission-line (NLTL) approach. The used thin-film monolithic microwave integrated circuit (MMIC) technology is substrate independent. The fabricated prototype is realized on a 500-$\mu \text{m}$transparent quartz substrate and occupies less than 1.2 mm2of chip area including pads. Measurement results show a wide input frequency range from 0 to 2.8 GHz with measured$S_{11}$better than −10 dB. The measured second-harmonic conversion gain (CG) for an output frequency of 3.4 GHz is −21.6 dB. The measured third-harmonic CG for an output frequency of 3.15 GHz is −31 dB. To the best knowledge of the authors, the proposed circuit is the first tunable microwave harmonic generator combining graphene diodes in a NLTL topology on thin-film technology.
Authors 7
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Affiliation as printed
Chair of High Frequency Electronics, RWTH-Aachen University, Aachen, Germany
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Affiliation as printed
Chair of High Frequency Electronics, RWTH-Aachen University, Aachen, Germany
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Affiliation as printed
Chair of High Frequency Electronics, RWTH-Aachen University, Aachen, Germany
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Affiliation as printed
AMO GmbH, Aachen, Germany
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Affiliation as printed
AMO GmbH, Aachen, Germany
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Affiliation as printed
Chair of High Frequency Electronics, RWTH-Aachen University, Aachen, Germany
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Affiliation as printed
Chair of High Frequency Electronics, RWTH-Aachen University, Aachen, Germany
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