New generation chiral metamaterials with small and flat chirality over a certain frequency band based on circular split ring resonators for microwave filter applications

2016 ◽  
Vol 30 (08) ◽  
pp. 1650114
Author(s):  
Furkan Dincer ◽  
Oguzhan Akgol ◽  
Muharrem Karaaslan ◽  
Emin Unal ◽  
Ekrem Demirel ◽  
...  
Keyword(s):  
Frequency Band ◽  
Ring Resonators ◽  
Microwave Filter ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Chiral Metamaterials ◽  
Suggested Structure ◽  
New Generation ◽  
Polarization Rotators

There are many studies in literature on chiral metamaterials (MTMs) to obtain large chiralities with dynamic optical activities. With this regard, this new generation planar chiral MTM study focuses on a small, non-dispersive (constant/flat) chirality admittance over an indicated frequency band which has not been investigated so far in literature. This new generation planar chiral MTM provides a small and a constant/fixed chirality which is mostly ignored by the scientists. This study numerically and experimentally investigates and examines these new generation MTMs based on circular split ring resonators (SRRs) with an increased capacitance in details. Obtained results show that the suggested structure can provide a small and constant/flat chirality admittance over a certain frequency band and hence it can be used to design myriad novel electromagnetic (EM) devices such as transmission and antireflection filters, polarization rotators for any desired frequency regions.

New generation planar chiral metamaterials with small and constant chirality over a certain frequency band

2015 ◽  
Vol 29 (01) ◽  
pp. 1450257
Author(s):  
Furkan Dincer ◽  
Muharrrem Karaaslan ◽  
Oguzhan Akgol ◽  
Emin Unal ◽  
Ekrem Demirel ◽  
...  
Keyword(s):  
Frequency Band ◽  
Ring Resonators ◽  
Split Ring ◽  
Chiral Metamaterials ◽  
Proposed Model ◽  
Time In Literature ◽  
New Generation ◽  
Novel Devices ◽  
Electromagnetic Transmission ◽  
Polarization Rotators

Chiral metamaterial (MTM) researchers generally concentrate and aim to obtain large chirality with optical activity in certain frequencies. However, new generation planar chiral MTM which have small and constant/flat chirality over a certain frequency band have not queried by this time in literature. In fact, this area is mostly ignored by researchers. This study, first one according to best of our knowledge in the literature, is investigating the small and constant/fixed chirality and focuses on the new generation planar chiral MTM based on circular split ring resonators (SRRs), in details. It can be seen from the results that the proposed model can provide small and constant/flat chirality over a certain frequency band and thus it can be used to design myriad novel devices such as polarization rotators, and electromagnetic transmission and antireflection filters for several frequency regions.

Tunable dual-band infrared chiral metamaterials based on double-layered asymmetric U-shape split ring resonators

2015 ◽  
Vol 74 ◽  
pp. 659-664 ◽  
Author(s):  
Yan-Peng Jia ◽  
Yong-Liang Zhang ◽  
Xian-Zi Dong ◽  
Mei-Ling Zheng ◽  
Zhen-Sheng Zhao ◽  
...  
Keyword(s):  
Ring Resonators ◽  
Dual Band ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Chiral Metamaterials

scholarly journals Chiral metamaterials with negative refractive index based on four “U” split ring resonators

2010 ◽  
Vol 97 (8) ◽  
pp. 081901 ◽  
Author(s):  
Zhaofeng Li ◽  
Rongkuo Zhao ◽  
Thomas Koschny ◽  
Maria Kafesaki ◽  
Kamil Boratay Alici ◽  
...  
Keyword(s):  
Refractive Index ◽  
Negative Refractive Index ◽  
Ring Resonators ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Chiral Metamaterials

scholarly journals A UWB Band-Pass Antenna with Triple-Notched Band Using Common Direction Rectangular Complementary Split-Ring Resonators

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Bo Yan ◽  
Di Jiang ◽  
Ruimin Xu ◽  
Yuehang Xu
Keyword(s):  
Frequency Band ◽  
Communication Systems ◽  
Satellite Communication ◽  
Coplanar Waveguide ◽  
Dielectric Substrate ◽  
Ring Resonators ◽  
Field Pattern ◽  
Strip Line ◽  
Split Ring ◽  
Split Ring Resonators

A novel ultrawideband (UWB) antenna which has a triple-band notch function is presented. The proposed antenna can block interfering signals from C-band satellite communication systems, IEEE802.11a, and HIPERLAN/2 WLAN systems for example. The antenna is excited by using novel common direction rectangular complementary split-ring resonators (CSRR) fabricated on radiating patch of the dielectric substrate with coplanar waveguide (CPW) feed strip line. The voltage standing wave ratio (VSWR) of the proposed antenna is less than 2.0 in the frequency band from 2.8 to 12 GHz, while showing a very sharp band-rejection performance at 3.9 GHz, 5.2 GHz, and 5.9 GHz. The measurement results show that the proposed antenna provides good omnidirectional field pattern over its whole frequency band excluding the rejected band, which is suitable for UWB applications.

Miniaturized MIMO Antenna with Complementary Split Ring Resonators Loaded Superstrate for X-band Application

2021 ◽  
Author(s):  
Karthigaiveni S ◽  
R Pandeeswari ◽  
Deivalakshmi S
Keyword(s):  
Frequency Band ◽  
Multiple Input Multiple Output ◽  
Split Ring Resonator ◽  
Ring Resonators ◽  
Impedance Bandwidth ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Mimo Antenna ◽  
Complementary Split Ring Resonator ◽  
X Band

Abstract An aperture coupled two element metamaterial (MTM) antenna suitable for multiple input multiple output (MIMO) applications in the frequency band of 7.525-9.1GHz is proposed. This three-layered structure utilizes a vertical array of rectangular complementary split ring resonators (CSRR) between the contiguously placed circular non-bianisotropic complementary split ring resonator (NBCSRR) radiating elements for enhancement of isolation. This antenna achieves a maximum of 47dB isolation through this MNG structure insertion in the frequency band for 0.11 λ0 separation of the two antenna elements. The proposed antenna achieves a fractional -10dB impedance bandwidth of 18.94% and has a peak gain of 8.15dB. The efficiency of the antenna is 84.14% and the envelope correlation coefficient is less than 0.03 in the operating band. The antenna is low profile with an overall size of 0.85 λ0 x 0.45 λ0 x 0.133 λ0 and is suitable for X-band military applications.

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