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Analysis of Two Coaxial Microwave Chambers having Possible use for Characterization of Materials

Analysis of Two Coaxial Microwave Chambers having Possible use for Characterization of Materials a Finite Element Analysis ( FEA ) using Comsol Multiphysics. Craig E. Nelson - Consultant Engineer.

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Analysis of Two Coaxial Microwave Chambers having Possible use for Characterization of Materials

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  1. Analysis of Two Coaxial Microwave Chambers having Possible use for Characterization of Materials a Finite Element Analysis ( FEA ) using Comsol Multiphysics Craig E. Nelson - Consultant Engineer

  2. The two kinds of coaxial microwave chambers are analyzed for the purpose of obtaining a better understanding of the nature and structure of the internal fields. Within the chambers is a region where the conductivity is .001 Siemens/meter. This value of conductivity is that of a semiconductor or weakly conducting electrolyte solution.

  3. Coaxial Microwave Chamber Type 1 A numerical experiment with a semiconducting material within the microwave energy flow path

  4. Name Variable Value Description epsilon0 epsilon0_weh 8.854187817e-12 Permittivity of vacuum mu0 mu0_weh 4*pi*1e-7 Permeability of vacuum nu nu_weh 1e9 Frequency mu = free pace eps = free pace Conductivity = 0 Siemens/meter mu = free pace eps = free pace Conductivity = .001 Siemens/meter 3.2.1. Scalar Variables.

  5. One radial mode is present complex radial modes are present and the wavelength is decreased Radial Component of the E field

  6. Coaxial Microwave Chamber Type 2 A numerical experiment with a semi-conducting material within the microwave energy flow path In this model, the inner conductor had been enlarged so as to control the radial modes that are otherwise be present

  7. Name Variable Value Description epsilon0 epsilon0_weh 8.854187817e-12 Permittivity of vacuum mu0 mu0_weh 4*pi*1e-7 Permeability of vacuum nu nu_weh 1e9 Frequency mu = free pace eps = free pace Conductivity = 0 Siemens/meter mu = free pace eps = free pace Conductivity = .001 Siemens/meter 3.2.1. Scalar Variables.

  8. One radial mode is present complex radial modes are not present but the wavelength is decreased Azimuthal Component of the E field

  9. Summary and Conclusions Two types of similar but different coaxial chambers have been analyzed by means of the finite element method ( FEA ). The results show the effect of material conductivity on wavelength within the coaxial chambers. The results show that control of radial modes requires expanding of the dimensions of the inner conductor

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