Gradient index circuit by waveguided metamaterials

Ruopeng Liu; Xin Mi Yang; Gollub, Jonah G.; Mock, Jack J.; Tie Jun Cui; Smith, David R.
February 2009
Applied Physics Letters;2/16/2009, Vol. 94 Issue 7, pN.PAG
Academic Journal
Metamaterials are artificially structured materials that provide considerable flexibility for control of electromagnetic waves. The metamaterial concept can also be applied to the design of planar waveguiding structures. Here, we illustrate this design approach with the development of two-dimensional (2D) planar gradient index (GRIN) circuits. To form the structure, we make use of a 2D complementary split ring resonator, which exhibits an electric response to guided transverse-electric waves. To confirm the properties of the planar GRIN structure predicted from numerical simulations, we present experimental results for a beam-steering and a focusing GRIN circuit. These examples illustrate the versatility of the metamaterial approach in the design of complex waveguiding structures.


Related Articles

  • Towards More Realistic Simulations of Galaxy Clusters: Shocks and Radio Relics. Skillman, Samuel W.; O'Shea, Brian W.; Hallman, Eric J.; Burns, Jack O. // AIP Conference Proceedings;12/19/2009, Vol. 1201 Issue 1, p334 

    Numerical simulations of galaxy clusters have advanced over time to the point where a large number of physical processes can be accurately captured. However, in order to accurately constrain the role of each process in cluster evolution, we must carefully compare with observational data. While...

  • Directional Coupler Based on Metamaterial Square CSRR Shape. Menachem, Z.; Haridim, M.; Tapuchi, S.; Chattah, Y. // Applied Physics Research;2012, Vol. 4 Issue 2, p258 

    Metamaterials are artificial structures that can be designed to exhibit specific electromagnetic properties that are not in the nature. In this paper, we design a directional coupler, based on the theory of the split-ring resonators (SRRs), and the complementary SRR (CSRRs). The experiments and...

  • Stacked complementary metasurfaces for ultraslow microwave metamaterials. Navarro-Cía, M.; Aznabet, M.; Beruete, M.; Falcone, F.; El Mrabet, O.; Sorolla, M.; Essaaidi, M. // Applied Physics Letters;4/19/2010, Vol. 96 Issue 16, p164103 

    We have experimentally realized at microwaves a dual-band ultraslow regime by constructing a metamaterial based upon the alternative stack of conventional- and complementary-split-ring-resonators-surfaces. The group delay reaches values larger than two orders of magnitude than those obtained...

  • Micro- and macroscopic simulation of periodic metamaterials. Schuhmann, R.; Bandlow, B.; Lubkowski, G.; Weiland, T. // Advances in Radio Science;2008, Vol. 6, p77 

    In order to characterize three-dimensional, left-handed metamaterials (LHM) we use electromagnetic field simulations of unit cells. For waves traveling in one of the main directions of the periodic LHM-arrays, the analysis is concentrated on the calculation of global quantities of the unit...

  • Transverse propagation in an expanded PSpice model for cardiac muscle with gap-junction ion channels. Ramasamy, Lakshminarayanan; Sperelakis, Nicholas // BioMedical Engineering OnLine;2006, Vol. 5, p46 

    Transverse propagation was previously found to occur in a two-dimensional model of cardiac muscle using the PSpice software program for electronic circuit design and analysis. Longitudinal propagation within each chain, and transverse propagation between parallel chains, occurred even when there...

  • Micro-electro-mechanically tunable metamaterial with enhanced electro-optic performance. Pitchappa, Prakash; Chong Pei Ho; Yu-Sheng Lin; Kropelnicki, Piotr; Chia-Yi Huang; Singh, Navab; Chengkuo Lee // Applied Physics Letters;4/14/2014, Vol. 104 Issue 15, p151104-1 

    We experimentally demonstrate a micro-electro-mechanically tunable metamaterial with enhanced electro-optical performance by increasing the number of movable cantilevers in the symmetrical split ring resonator metamaterial unit cell. Simulations were carried out to understand the interaction of...

  • Left handed transmission properties of planar metamaterials based on complementary double-ring resonators. Wei Bing Lu; Zhong Fu Ji; Zheng Gao Dong; Xue Wei Ping; Tie Jun Cui // Journal of Applied Physics;Aug2010, Vol. 108 Issue 3, p033717 

    We investigate the transmission properties of planar metamaterials based on complementary double-ring resonators, and a left-handed resonant transmission peak has been verified by both simulation and experimental results. The theoretical analysis and numerical simulation on the electromagnetic...

  • THE EARTH IN AN ELECTRIC SOLAR SYSTEM. Hissink, Louis A. G. // Energy & Environment;2009, Vol. 20 Issue 1/2, p161 

    Since Isaac Newton's time till the present, science has described the universe in terms of his laws of gravitation without explanation but since the development of the modern industrial age electrical engineers have also noted unexpected electromagnetic behaviour in the various engineered...

  • Transmission Distance Limitations in Spectral-Amplitude-Coding Optical Code-Division Multiple-Access Systems Due To Nonlinear Stimulated Brillouin Scattering. Hatim, Fuad A.; Hasoon, Feras N.; Al-Mansoori, Mohammed H.; Kazem, Hussein A.; Ghazi, Ali Z.; Hmud, Ihssan Sh.; Shaari, Sahbudin // International Journal of Engineering & Technology;Oct2012, Vol. 12 Issue 5, p87 

    In this paper, the performance limitations of spectral-amplitude-coding optical code-division multiple-access (SAC-OCDMA) systems due to nonlinear stimulated Brillouin scattering (SBS) effects have been evaluated for different number of users. A number of computer simulations experiments have...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics