Design of Voltage control Oscillator using Nonlinear Composite Right/Left-Handed Transmission Line

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Published: Mar 10, 2016
DOI: https://doi.org/10.7716/aem.v5i1.342
Keywords:
VCO metamaterials

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H. J. El-Khozondar
Islamic Univeristy of Gaza
M. Abu-Marasa
R. J. El-Khozondar
M. Elbahri
S. Zouhdi

Abstract

In the present work, we propose a voltage control oscillator (VCO) at high frequency consists of nonlinear composite right/left-handed transmission line (CRLH-TL) loaded with Resonant Tunneling Diode (RTD). We designed three prototype device examples. The first one consists of one cell with short circuit at the beginning of the cell between ground and patch, and 50 Ω load resistance were added at the end of the cell between ground and patch. The second one is similar to the first prototype but with open circuit at the beginning of the cell instated of short circuit. The third prototype consists of one cell with two 50 Ω load resistances added between ground and patch at the beginning and at the end of the cell. The proposed VCO models are capable of generating oscillations at frequencies between 4.87- 14.9 GHz. In our simulations, we used OrCAD and ADS software to analyze the proposed circuit.

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How to Cite
El-Khozondar, H. J., Abu-Marasa, M., El-Khozondar, R. J., Elbahri, M., & Zouhdi, S. (2016). Design of Voltage control Oscillator using Nonlinear Composite Right/Left-Handed Transmission Line. Advanced Electromagnetics, 5(1), 15–21. https://doi.org/10.7716/aem.v5i1.342
Issue
Vol. 5 No. 1 (2016)
Section
Research Articles

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Author Biography

H. J. El-Khozondar, Islamic Univeristy of Gaza

Hala J. El-Khozondar was born in Gaza, Palestinian Territory. She got her B.Sc. in Physics from BirZeit University, Palestinian Territory in 1987.   She earned her Ph.D. in physics from NMSU, USA in 1999. She joined the physics faculty at BirZeit University in 1987.  She had a Postdoc award at Max Planck Institute in Heidelberg, Germany in 1999.  In 2000, she worked as assistant professor in electrical and computer engineering (ECE) department at Islamic University of Gaza. In 2007, she had promoted to an associated professor. Currently, she is a vice dean for external relations at Islamic University of Gaza. She advises several graduate and undergraduate students.  She participated in several conferences and workshops. Her research interests are focused on studying Wireless communication, optical communication, optical fiber sensors, magneto-optical isolators, optical filter, MTMs devices, biophysics, electro-optical waveguides, and numerical simulation of microstructural evolution of polycrystalline materials. She is a senior member at ICTP. She is a recipient of international awards and recognitions, including Fulbright Scholarship, DAAD short study visit, Alexander von Humboldt-Stiftung Scholarship, Erasmus Mundus, and Islamic University Deanery Prize for applied sciences.

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