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Electromagnetic wave propagation through a dielectric guide having Piet Hein cross‐sectional geometry
Author(s) -
Misra Vandana,
Choudhury P. K.,
Khastgir P.,
Ojha S. P.
Publication year - 1996
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19960805)12:5<250::aid-mop2>3.0.co;2-9
Subject(s) - dielectric , geometry , physics , acoustics , mathematics , optoelectronics
This article deals with a new type of dielectric guide, which has as its cross‐sectional outline a Piet Hein curve. With the use of the scalar field approximation, eigenvalue equations for cutoffs have been derived for modes with different indices. Numerical results exhibit that the cutoff V value for the dielectric guide with Piet Hein cross‐sectional geometry is intermediate between those of similar guides with square and circular cross sections; therefore, such a guide incorporates the properties of both square and circular waveguides. A study of these guides is advantageous because of the absence of corners, which reduces the scattering losses in rectangular dielectric waveguides. © 1996 John Wiley & Sons, Inc.