Journal of Microwave Power and Electromagnetic Energy (JMPEE)
TITLE	Use of Sheath Helix Slow-wave Structure as an Applicator in Microwave Heating Systems [PDF]
AUTHORS	EI-Deek M. El-Sayed and T. K. Abdel-Hamid 1981 16 3&4 283-288
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Abstract This paper concerns a theoretical study of using the sheath helix slow-wave structure, surrounded by a conducting tube, as an applicator in microwave heating systems of dielectric filamentary materials. Analysis is made, in detail, for wave propagation through this structure. Variations of attenuation coefficient and specific power absorption, due to dielectric polarization, with applicator geometry, are investigated. Numerical example is given comparing heating efficiency of sheath helix applicator and that of travelling-wave circular waveguide applicator.