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Hu, J., Xiong, J., Ling T. and Zou, Y. (2007) Design of a Novel Wilkinson Power Splitter Based on the Left-Handed Transmission Line. Microwave and Optical Technology Letters, 49, 2975-2977.
http://onlinelibrary.wiley.com/doi/10.1002/mop.22896/abstract

has been cited by the following article:

• TITLE: Numerical Investigation of Phase and Group Propagation of Time-Domain Signals in a Novel Band-Reject Metamaterial Ring Hybrid

  AUTHORS: Omar Siddiqui

  KEYWORDS: 180° Ring Hybrid, Metamaterials, Phase and Group Velocities, Harmonic Suppression, Rat-Race

  JOURNAL NAME: Journal of Computer and Communications, Vol.3 No.6, May 26, 2015

  ABSTRACT: Phase and group propagation in metamaterial-based microwave components has always been intellectually challenging for students and engineers new to the area of periodic structures and metamaterials. This paper aims in tackling this important topic by studying the wave propagation in a metamaterial-based microwave device. Hence, the contribution of this paper is twofold. First, design of a novel metamaterial ring hybrid (or rate-race) is presented which has a large rejection band so that the second and third harmonics are effectively suppressed. Second, the electromagnetic phase and the group propagation in the ring hybrid are investigated by numerically exciting the input ports with band-limited Gaussian pulses and then finding their responses at various locations in the device.