The scattering the TEM mode at the junction of perfectly conducting and dielectric loaded grooved coaxial waveguides

Büyükaksoy, Alinur; Uzgoren, G.; Serbest, Hamit

doi:10.1109/mms.2009.5409818

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Besides the above-mentioned practical importance, the present work also contributes to the development of rigorous diffraction theory, since it deals with a canonical problem, i.e., a relatively simple geometric structure (so-called "canonical structure") excited by a simple free or guided wave. A series of related problems associated with an open end discontinuity [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] or a cross-sectional discontinuity [39,40] in waveguides and resonators can be mentioned. However, the diffraction problem with a canonical structure discussed in this paper has not been rigorously investigated so far.…”

Section: Introductionmentioning

confidence: 99%

Radiation of a TM mode from an open end of a three-layer dielectric capillary

Galyamin,

Altmark

2024

Chinese Phys. B

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Modern trends in beam-driven radiation sources include the interaction of Cherenkov wakefields with open-ended circular waveguides with complicated dielectric linings, with a three-layer dielectric capillary recently proposed to reduce radiation divergence being a representative example [Jiang S et al. 2020 Opt. Lett. 45 5416]. This paper presents a rigorous approach that allows for an analytical description of the electromagnetic processes that occur when the structure is excited by a single waveguide TM mode. In other words, the corresponding canonical waveguide diffraction problem is solved in a rigorous formulation. This is a continuation of our previous papers which considered simpler cases with a homogeneous or two-layer dielectric filling. Here, we use the same analytical approach based on the Wiener-Hopf-Fock technique and deal with the more complicated case of a three-layer dielectric lining. Using the obtained rigorous solution, we discuss the possibility of manipulating the far-field radiation pattern using a third layer made of a low permittivity material.

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