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Fractal-Shaped Metamaterials and Applications to Enhanced-Performance Devices Exhibiting High Selectivity
Joint Authors
Xu, He-Xiu
Zhang, Chen-Xin
Wang, Guang-Ming
Source
International Journal of Antennas and Propagation
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-09-04
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Novel single negative metamaterial (MTM) transmission lines (TLs) are presented and studied in microstrip technology.
They consist of a host TL in the conductor strip and a fractal-shaped complementary ring resonator (CRR) etched in the ground plane.
Two types of fractal-shaped CRR are involved including the Moore and Hilbert.
It is found that fractal perturbation in CRR results in lower and more transmission zeros in comparison with conventional CRR using nonfractal geometries.
The single negative-permeability or -permittivity of these MTM TLs which associated with the resultant multitransmission zeros occurs by turns and should benefit devices with high selectivity requirement.
Potential application of these MTM cells are illustrated by two examples, one is the microstrip stepped-impedance transformers (SIT) operating at 3.5 GHz with two edged attenuation poles to introduce selectivity; the other one is the Hi-Lo microstrip low-pass filter (LPF) with cutoff frequency 2.5 GHz exhibiting improved selectivity (77.3 dB/GHz).
By constructing the low-impedance sections as hybrid prefractal shape and crown square, both the SITs and LPF obtained additional bandwidth enhancement and good matching.
Consistent results between simulation and measurement have confirmed the design concept.
American Psychological Association (APA)
Xu, He-Xiu& Wang, Guang-Ming& Zhang, Chen-Xin. 2011. Fractal-Shaped Metamaterials and Applications to Enhanced-Performance Devices Exhibiting High Selectivity. International Journal of Antennas and Propagation،Vol. 2012, no. 2012, pp.1-14.
https://search.emarefa.net/detail/BIM-477776
Modern Language Association (MLA)
Xu, He-Xiu…[et al.]. Fractal-Shaped Metamaterials and Applications to Enhanced-Performance Devices Exhibiting High Selectivity. International Journal of Antennas and Propagation No. 2012 (2012), pp.1-14.
https://search.emarefa.net/detail/BIM-477776
American Medical Association (AMA)
Xu, He-Xiu& Wang, Guang-Ming& Zhang, Chen-Xin. Fractal-Shaped Metamaterials and Applications to Enhanced-Performance Devices Exhibiting High Selectivity. International Journal of Antennas and Propagation. 2011. Vol. 2012, no. 2012, pp.1-14.
https://search.emarefa.net/detail/BIM-477776
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-477776