volume | PIER Journals

2010-07-01

Frequency-Selective Energy Tunneling in Wire-Loaded Narrow Waveguide Channels

Omar Farooq Siddiqui,

Dr. Omar Farooq Siddiqui

King Saud Univ

Saudi Arabia

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Omar M. Ramahi

Dr. Omar M. Ramahi

Electrical and Computer Engineering Department

University of Waterloo

Canada

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Progress In Electromagnetics Research Letters, Vol. 15, 153-161, 2010

doi:10.2528/PIERL10031809

Abstract

Frequency-dependent energy tunneling that results in full transmission of electromagnetic energy through wire-loaded sharp waveguide bends is demonstrated by full-wave simulations. The frequencies at which the tunneling takes place is predicted by a numerical method that involves a variational impedance formula based on Green function of a probe-excited parallel plate waveguide. Analogous tunneling effects have also been previously observed in waveguide bends filled with epsilon-near-zero media. However, since the frequency response in the wire-loaded waveguides can be tailored by simply modifying the lengths of the wires, the phenomenon is scalable over a broad range of frequencies and can be potentially exploited in various filtering and multiplexing applications.

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Omar Farooq Siddiqui, and Omar M. Ramahi, "Frequency-Selective Energy Tunneling in Wire-Loaded Narrow Waveguide Channels," Progress In Electromagnetics Research Letters, Vol. 15, 153-161, 2010.
doi:10.2528/PIERL10031809

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