scholarly journals The thick ring resonators to achieve negative permeability and its left-handed behavior in perpendicular propagation

2008 ◽  
Vol 57 (2) ◽  
pp. 934
Author(s):  
Liu Ya-Hong ◽  
Song Juan ◽  
Luo Chun-Rong ◽  
Fu Quan-Hong ◽  
Zhao Xiao-Peng
Keyword(s):  
Ring Resonators ◽  
Negative Permeability ◽  
Left Handed

Left-handed metamaterials—A review

2017 ◽  
Author(s):  
E. Ozbay ◽  
G. Ozkan ◽  
K. Aydin
Keyword(s):  
Negative Refraction ◽  
Ring Resonators ◽  
Negative Permeability ◽  
Transmission Spectra ◽  
Split Ring ◽  
One Dimensional ◽  
Left Handed ◽  
Negative Material ◽  
Reflection Characteristics ◽  
Transmission And Reflection

This article focuses on left-handed metamaterials (LHMs). It begins with a discussion of negative-permeability metamaterials, with particular emphasis on split-ring resonators (SRRs) and SRRr arrays and how magnetic permeability influences the response of materials to the incident magnetic field. It then considers the transmission spectra of SRR, LHM and a composite metamaterial as well as the reflection characteristics of a one-dimensional double-negative material. It also examines the effect of disorder on the transmission and reflection properties of ordered left-handed materials, along with the negative refraction, negative phase velocity, and subwavelength imaging and resolution of LHMs. The article concludes with an analysis of planar negative-index metamaterials.

Normal-incidence left-handed metamaterials based on symmetrically connected split-ring resonators

2010 ◽  
Vol 81 (3) ◽  
Author(s):  
Jiafu Wang ◽  
Shaobo Qu ◽  
Zhuo Xu ◽  
Hua Ma ◽  
Song Xia ◽  
...  
Keyword(s):  
Normal Incidence ◽  
Ring Resonators ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Left Handed

Left handed transmission properties of planar metamaterials based on complementary double-ring resonators

2010 ◽  
Vol 108 (3) ◽  
pp. 033717 ◽  
Author(s):  
Wei Bing Lu ◽  
Zhong Fu Ji ◽  
Zheng Gao Dong ◽  
Xue Wei Ping ◽  
Tie Jun Cui
Keyword(s):  
Ring Resonators ◽  
Double Ring ◽  
Transmission Properties ◽  
Left Handed ◽  
Planar Metamaterials

Behaviour of Hexagon Split Ring Resonators and Left-Handed Metamaterials

2004 ◽  
Vol 21 (7) ◽  
pp. 1330-1332 ◽  
Author(s):  
Zhang Fu-Li ◽  
Zhao Qian ◽  
Liu Ya-Hong ◽  
Luo Chun-Rong ◽  
Zhao Xiao-Peng
Keyword(s):  
Ring Resonators ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Left Handed

Circularly polarized microstrip antenna arrays with reduced mutual coupling using metamaterial

2015 ◽  
Vol 8 (8) ◽  
pp. 1253-1263 ◽  
Author(s):  
R. Hafezifard ◽  
Jalil Rashed-Mohassel ◽  
Mohammad Naser-Moghadasi ◽  
R. A. Sadeghzadeh
Keyword(s):  
Antenna Arrays ◽  
Microstrip Antenna ◽  
Mutual Coupling ◽  
Ground Plane ◽  
High Gain ◽  
Ring Resonators ◽  
Magnetic Characteristics ◽  
Circularly Polarized ◽  
Antenna Performance ◽  
Left Handed

A circularly polarized (CP) and high gain Microstrip antenna is designed in this paper using metamaterial concepts. The antenna, built on a metamaterial substrate, showed significant size reduction and less mutual coupling in an array compared with similar arrays on conventional substrates. Demonstrated to have left-handed magnetic characteristics, the methodology uses complementary split-ring resonators (SRRs) placed horizontally between the patch and the ground plane. In order to reduce mutual coupling in the array structure, hexagonal-SRRs are embedded between antenna elements. The procedure is shown to have great impact on the antenna performance specifically its bandwidth which is broadened from 400 MHz to 1.2 GHz for X-band and as well as its efficiency. The structure has also low loss and improved standing wave ratio and less mutual coupling. The results show that a reduction of 26.6 dB in mutual coupling is obtained between elements at the operation frequency of the array. Experimental data show a reasonably good agreement between simulation and measured results.

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