The Electric-Dipole Resonances of Ring Resonators of Very High Permittivity (Short Papers)

1976 ◽  
Vol 24 (2) ◽  
pp. 108-112 ◽  
Author(s):  
M. Verplanken ◽  
J.V. Bladel
Keyword(s):  
Electric Dipole ◽  
Ring Resonators ◽  
High Permittivity ◽  
Very High

Miniaturized microstrip meander-line antenna with very high-permittivity substrate for sensor applications

2007 ◽  
Vol 49 (10) ◽  
pp. 2438-2440 ◽  
Author(s):  
Haiwen Liu ◽  
Shohei Ishikawa ◽  
An An ◽  
Satoshi Kurachi ◽  
Toshihiko Yoshimasu
Keyword(s):  
High Permittivity ◽  
Sensor Applications ◽  
Meander Line ◽  
Very High

Coupled very-high permittivity dielectric resonators for clinical MRI

2020 ◽  
Vol 117 (10) ◽  
pp. 103701 ◽  
Author(s):  
Viacheslav Ivanov ◽  
Alena Shchelokova ◽  
Anna Andreychenko ◽  
Alexey Slobozhanyuk
Keyword(s):  
Dielectric Resonators ◽  
High Permittivity ◽  
Clinical Mri ◽  
Very High

Low-profile circular disk DR antenna of very high permittivity excited by a microstripline

1997 ◽  
Vol 33 (12) ◽  
pp. 1004 ◽  
Author(s):  
K.W. Leung ◽  
K.Y. Chow ◽  
K.M. Luk ◽  
E.K.N. Yung
Keyword(s):  
Circular Disk ◽  
High Permittivity ◽  
Low Profile ◽  
Very High

Negative Refractive Index of Meta-materials at Optical Frequencies

2006 ◽  
Vol 964 ◽  
Author(s):  
S. Anantha Ramakrishna ◽  
Sangeeta Chakrabarti
Keyword(s):  
Refractive Index ◽  
Negative Refractive Index ◽  
Magnetic Activity ◽  
Ring Resonators ◽  
Split Ring ◽  
Complex Behaviour ◽  
High Frequencies ◽  
Displacement Currents ◽  
Very High Frequencies ◽  
Very High

ABSTRACTScaling the performance of metamaterials to obtain negative refractive index at optical frequencies has been of great interest. One of the great barriers to the scaling is that real currents cannot be driven at very high frequencies and one is more dependent on displacement currents to generate negative magnetic permeability. Moreover to keep the dimensions of the metamaterials physically accessible, the structural lengthscales of the metamaterials begin approach the wavelength of the radiation in free space and homogenisation is often questionable. Here we will show that metamaterials such as Split ring resonators in these high frequency limits exhibit complex behaviour. Magnetic activity and Negative refractive index behaviour can, indeed, be obtained at optical frequencies but will need to be interpreted very carefully. The plasmonic nature of the metallic system and excitation needs to be considered in detail.

Novel Doping Mechanism for Very-High-Permittivity Barium Titanate Ceramics

2005 ◽  
Vol 81 (7) ◽  
pp. 1957-1960 ◽  
Author(s):  
Finlay D. Morrison ◽  
Derek C. Sinclair ◽  
Janet M. S. Skakle ◽  
Anthony R. West
Keyword(s):  
Barium Titanate ◽  
High Permittivity ◽  
Doping Mechanism ◽  
Titanate Ceramics ◽  
Very High
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