A frequency multiplier using three ambipolar graphene transistors. (December 2017)

• Record Type: Journal Article
• Authors: Kabir, Hussain Mohammed Dipu; Salahuddin, S.M.
• Is Part Of: Microelectronics journal. Volume 70(2017)
• Page Start: 12
• Page End: 15
• Publication Date: 2017-12
• Subjects: Doubler -- CNT -- Graphene -- Ambipolar; Microelectronics -- Periodicals; Microélectronique -- Périodiques; Microelectronics; Electronic journals; Journals - contents and abstracts; Periodicals; 621.3805
• DOI: 10.1016/j.mejo.2017.10.002
• Languages: English
• ISSNs: 0959-8324

Abstract

Abstract: In this paper, a frequency doubler circuit is designed using three ambipolar graphene transistors. Transistors are connected in series, across the voltage source ( V DD ) and the ground ( V SS ). Gates of transistors are shorted; a small AC signal is applied to the gate with a DC bias voltage. The output voltage signal is measured across the source and drain of the middle transistor. As the DC bias point is operated at the minimum-current voltage ( V G_MIN ) of the middle transistor, single swing in the input causes double swing at the output. Furthermore, gates of three transistors can be shared as a common gate without using any connecting wire. Prior to the AC analysis, a DC sweep is performed to visualize the voltage change in each node. The required property of the ambipolar material for the implementation of the proposed circuit is also investigated.