Llombart, Nuria and Mazzinghi, Agnese and Siegel, Peter H. and Freni, Angelo (2009) Design of a Low Loss Metallo-Dielectric EBG Waveguide at Submillimeter Wavelengths. IEEE Microwave and Wireless Components Letters, 19 (7). pp. 437-439. ISSN 1531-1309 http://resolver.caltech.edu/CaltechAUTHORS:20090821-134933360
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In this letter we show the viability of using concentric cylindrically-periodic (CP) dielectrics to realize low-loss propagation at submillimeter wavelengths. Most of the power in the CP Waveguide (WG) is confined to an air core propagating a TE_(01) mode. The TM_(11) mode degeneracy is removed over a very wide bandwidth by a series of periodically spaced dielectric rings that are optimized in thickness and spacing. The new waveguide differs from classical Bragg fibers in that we use only a small number of dielectric layers (2-4), and terminate the outer layer with an external metal coating. We include several designs and describe the optimization procedure that was used to realize structures with low propagation and bend loss.
|Additional Information:||© Copyright 2009 IEEE. Manuscript received December 19, 2008; revised March 16, 2009. First published June 23, 2009; current version published July 09, 2009.|
|Subject Keywords:||Bragg fibers; electromagnetic bandgap (EBG); optimization; THz waveguide|
|Official Citation:||Llombart, N.; Mazzinghi, A.; Siegel, P.H.; Freni, A., "Design of a Low Loss Metallo-Dielectric EBG Waveguide at Submillimeter Wavelengths," Microwave and Wireless Components Letters, IEEE , vol.19, no.7, pp.437-439, July 2009 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=5109499&isnumber=5156157|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||George Porter|
|Deposited On:||09 Sep 2009 21:08|
|Last Modified:||26 Dec 2012 11:14|
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