Electromagnetic Transmission Property in Split-Ring Resonators at Microwave Frequency by Finite Difference Time Domain Method

2009 ◽  
Vol 388 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Huiqing Fan ◽  
Weiwei Yang ◽  
Chuang Li
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Microwave Frequency ◽  
Ring Resonators ◽  
Transmission Property ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Electromagnetic Transmission ◽  
Difference Time

Angle Sensor Based on Golden Spiral–Shaped Tapered Ring Resonator Using Finite Difference Time-Domain Method

2015 ◽  
Vol 781 ◽  
pp. 462-465 ◽  
Author(s):  
S. Harnsoongnoen ◽  
U. Charoen-In ◽  
S. Pattitanang ◽  
C. Auntarin ◽  
N. Angkawisittpan
Keyword(s):  
Finite Difference ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Dynamic Range ◽  
Time Domain Method ◽  
Ring Resonators ◽  
Small Scale ◽  
Angle Sensor ◽  
Domain Method ◽  
Difference Time

In this paper, an angle sensor based on coplanar waveguides (CPWs) loaded with golden spiral–shaped tapered ring resonators (GS-RRs) is proposed. The E-fields and H-fields of the GS-RRs were simulated and analyzed using finite difference time-domain method (FDTD). It is shown that the proposed sensor has a high dynamic range and linearity for rotation sensing. The proposed sensor can be operated at a single fixed resonant frequency (6.32 GHz) which is inexpensive and probably for superior interest in a small scale structure using MEMS technology.

OPTICAL RESONATOR ANALOG OF A PHOTONIC TOPOLOGICAL INSULATOR: A FINITE-DIFFERENCE TIME-DOMAIN STUDY

2013 ◽  
Vol 28 (02) ◽  
pp. 1441007 ◽  
Author(s):  
G. Q. LIANG ◽  
Y. D. CHONG
Keyword(s):  
Finite Difference ◽  
Topological Insulator ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Matrix Theory ◽  
Ring Resonators ◽  
Periodic Lattice ◽  
Edge States ◽  
Propagation Of Light ◽  
Difference Time

A periodic lattice of optical ring resonators can act as a photonic topological insulator, with the role of spin played by the direction of propagation of light within each ring. Using finite-difference time-domain (FDTD) simulations, we compute the projected band diagram of the system and its transmission spectrum, and demonstrate the existence of the topological edge states. The FDTD results are in good agreement with the predictions of transfer matrix theory.

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