A GaAs planar Schottky varactor diode for left-handed nonlinear transmission line applications

doi:10.1088/1674-1056/21/6/067303

Abstract The left-handed nonlinear transmission line (LH-NLTL) based on monolithic microwave integrated circuit (MMIC) technology possesses significant advantages such as wide frequency band, high operating frequency, high conversion efficiency, and applications in millimeter and submillimeter wave frequency multiplier. The planar Schottky varactor diode (PSVD) is a major limitation to the performance of the LH-NLTL frequency multiplier as a nonlinear component. The design and the fabrication of the diode for such an application are presented. An accurate large-signal model of the diode is proposed. A 16 GHz-39.6 GHz LH-NLTL frequency doubler using our large-signal model is reported for the first time. The measured maximum output powers of the 2nd harmonic are up to 8 dBm at 26.4 GHz, and above 0 dBm from 16 GHz to 39.6 GHz when the input power is 20 dBm. The application of the LH-NLTL frequency doubler furthermore validates the accuracy of the large-signal model of the PSVD.

Keywords: GaAs planar Schottky varactor diode left-handed nonlinear transmission lines frequency doubler

Received: 19 August 2011
Revised: 13 January 2012
Accepted manuscript online:

PACS:	73.30.ty
	73.61.Ey	(III-V semiconductors)
	41.20.Jb	(Electromagnetic wave propagation; radiowave propagation)
	84.40.Az	(Waveguides, transmission lines, striplines)

Fund: Project supported by the National Scientific Major Projects of China (Grant No. 2011ZX03004-001-02) and the National Natural Science Foundation of China (Grant No. 60806024).

Corresponding Authors: Dong Jun-Rong
E-mail: dongjunrong@ime.ac.cn

Cite this article:

Dong Jun-Rong(董军荣), Yang Hao(杨浩), Tian Chao(田超), Huang Jie(黄杰), and Zhang Hai-Ying(张海英) A GaAs planar Schottky varactor diode for left-handed nonlinear transmission line applications 2012 Chin. Phys. B 21 067303

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A GaAs planar Schottky varactor diode for left-handed nonlinear transmission line applications

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