Development of wide frequency band negative permeability structures based on split ring resonators

Author(s):  
Takuji Arima ◽  
Toru Uno
2008 ◽  
Vol 16 (12) ◽  
pp. 8825 ◽  
Author(s):  
Lei Kang ◽  
Qian Zhao ◽  
Hongjie Zhao ◽  
Ji Zhou

2016 ◽  
Vol 30 (08) ◽  
pp. 1650114
Author(s):  
Furkan Dincer ◽  
Oguzhan Akgol ◽  
Muharrem Karaaslan ◽  
Emin Unal ◽  
Ekrem Demirel ◽  
...  

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.


2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Bo Yan ◽  
Di Jiang ◽  
Ruimin Xu ◽  
Yuehang Xu

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.


2003 ◽  
Author(s):  
A.-C. Hsu ◽  
Y.-K. Cheng ◽  
K.-H. Chen ◽  
J.-L. Chern ◽  
S.-C. Wu ◽  
...  

2021 ◽  
Author(s):  
Karthigaiveni S ◽  
R Pandeeswari ◽  
Deivalakshmi S

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.


ACS Photonics ◽  
2020 ◽  
Vol 7 (12) ◽  
pp. 3298-3304
Author(s):  
Hao-Yuan Tsai ◽  
Che-Chin Chen ◽  
Tse-An Chen ◽  
Din Ping Tsai ◽  
Takuo Tanaka ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document