Energy Tunneling Behavior in Geometrically Separated Wave Guides

Main Article Content

M. Omar
R. Ramzan
O. F. Saddiqui

Abstract

In this paper, characteristics of energy tunneling channel between the waveguides geometrically separated by a coaxial cable are studied.  The novel aspect of design is use of coaxial channel to connect the waveguides while maintaining the energy tunneling phenomena. As anticipated the tunneling frequency depends upon the length of wire inside the waveguide and the length of the coaxial cable. The tunneling frequency also depends upon the dielectric constant of the material inside the waveguide and coaxial cable.  At tunneling frequency the field strength (E and H) in the channel is extremely high, making the channel extremely sensitive to small change in permittivity of dielectric occupying the channel.  The advantage of the proposed design is, its ability to tune to desired tunneling frequency just by changing the length of the coaxial cable without the need to redesign the waveguide height to accommodate the long tunneling wires. This structure can be used as dielectric sensor both for solid or liquid dielectrics just by placing the sample in coaxial cable cavity, contrary to previously report work where the sample has to be placed inside the waveguide.

Downloads

Download data is not yet available.

Article Details

How to Cite
Omar, M., Ramzan, R., & Saddiqui, O. F. (2017). Energy Tunneling Behavior in Geometrically Separated Wave Guides. Advanced Electromagnetics, 6(3), 84–87. https://doi.org/10.7716/aem.v6i3.422
Section
Research Articles

References

A. Alu and N. Engheta, "Light squeezing through arbitrarily shaped plasmonic channels and sharp bends," Phys. Rev. B, vol. 78, p. 035440, Jul. 2008.

View Article

A. Alu, M. Silveirinha, and N. Engheta, "Transmission-line analysis of epsilon-near-zero (ENZ)-filled narrow channels," Phys. Rev. E, vol. 78, p. 016604, Jul. 23, 2008.

View Article

M. G. Silveirinha and N. Engheta, "Theory of supercoupling, squeezing wave energy, and field confinement in narrow channels and tight bends using nearzero metamaterials," Phys. Rev. B., vol. 76, no. 24, p. 245109, Dec. 2007.

View Article

Omar Siddiqui, Mani Kashanianfard and Omar Ramahi,"Dielectric Sensors Based on Electromagnetic Energy Tunneling" Sensors, 15, 7844-7856, 2015.

View Article

A. Nauroze1, O. Sidiqui, R. Ramzan, and O. Ramahi, "Dielectric Sensing based on Energy Tunneling in Wireloaded Microstrip Cavities" META'13, 18–22, Sharjah , UAE, March 2013.

O. F. Siddiqui and O. M. Ramahi, "Frequency-selective energy tunneling in wire-loaded narrow waveguide channels," PIER, Letters, Vol. 15, 153-161, 2010.

View Article

Alu A.-Young-M.E. Silveirinha M.-Engheta N. Edwards, B. "Experimental veri_cation of epsilon-near-zero metamaterial coupling and energy squeezing using a microwave waveguide," Physical Review Letters, 100(3), 2008.

R. Ramzan, O. Siddiqui, A. Nauroze, and O. Ramahi," Microstrip Probe Based on Electromagnetic Energy Tunneling for Extremely Small and Arbitrarily Shaped Dielectric Samples" IEEE antennas and wireless propagation letters, vol. 14, 2015.

M. Kashanianfard, "Electromagnetic Wave Transmission through Sub-wavelength Channels and Bends Using Metallic Wires, M.S. thesis, Dept. Elect. And Comp. Eng., Univ. of Waterloo, Waterloo, Ontario, Canada, 2009.

Similar Articles

You may also start an advanced similarity search for this article.