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Waveguide bandstop filter based on irises and double corrugations for use in industrial microwave ovens

Waveguide bandstop filter based on irises and double corrugations for use in industrial microwave ovens

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© The Institution of Engineering and Technology
Published

In this reported work it is shown that one of the most employed filtering systems for use in continuous-flow industrial microwave ovens, namely doubly corrugated filters, does not work properly for many values of the electric permittivity of the processed material when it is partially filled. Thus, a novel bandstop filter which solves these inconveniences, based on a combination of metallic irises and double corrugations, is designed by means of CST Microwave Studio® and experimentally validated.

Inspec keywords: waveguide filters; band-stop filters; microwave ovens; microwave filters; permittivity

Other keywords: CST Microwave Studio; double corrugations; waveguide bandstop filter; electric permittivity; continuous-flow industrial microwave ovens; doubly corrugated filters

Subjects: Industrial and medical applications of microwaves; Waveguide and microwave transmission line components; Filters and other networks

References

    1. 1)
      • J.M. Catalá-Civera , P. Soto , V.E. Boria , J.V. Balbastre , E. de los Reyes . (2006) Design parameters of multiple reactive chokes for open ports in microwave heating systems, advances in microwave and radio frequency processing.
    2. 2)
      • A.L. Vankoughnett , J.G. Dunn . Doubly corrugated chokes for microwave heating systems. J. Microw. Power , 1 , 101 - 110
    3. 3)
    4. 4)
      • CST STUDIO SUITE™, http://www.cst.com.
    5. 5)
      • Monzó-Cabrera, J., Pedreño-Molina, J.L., Díaz-Morcillo, A., Clemente-Fernández, F.J., Díaz-García, J., Baños-Tudela, J.M., Méndez-Hernández, P.A.: `Filtro multimodo de microondas abierto en tecnología de guía de onda mediante la combinación de postes e iris para hornos de calentamiento por microondas', ES2337756 Patent, 2011.
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2012.1211
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