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Mode Matching Technique in a Cylindrical Cavity with Center Wire

  • Han, Dae Hyun (Dept. of Electronic Engineering, Dongeui University)
  • Received : 2018.05.17
  • Accepted : 2018.06.21
  • Published : 2018.06.30
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Abstract

The eigen value problem of a coaxial cavity and a modified pill box cavity is investigated using the mode matching technique. The coaxial cavity has a cylindrical cavity with beam ports and center conductor. The pill box cavity is the same as a coaxial cavity without center conductor. The electric field and magnetic field are formulated in propagation region and resonance region. The boundary and orthogonal conditions are applied to the electric and magnetic fields. We derived the eigen value equation by the proposed procedure in a coaxial cavity and a modified pill box cavity. The electromagnetic field of the real structure is disturbed by the coaxial wire. The effect of the coaxial wire in pill box cavity with beam ports increase the dominant resonant frequency. The coaxial line method of the coupling impedance is not adequate for a cylindrical cavity. The results of the mode matching technique and simulation agree well. The results confirm the proposed formulation is valid.

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References

  1. T. Itoh, Numerical Techniques for Microwave and Millimeter-Wave Passive Structure, John Wiley & Sons, 1989
  2. Jose A. Encinar, "Mode Matching and Point Matching Techniques Applied to the Analysis of Metal-Strip- Loaded Dielectric Antennas", IEEE Trans. Antenna and Propagation, vol. 38, no. 9, pp. 1405-1412, Sept. 1990. https://doi.org/10.1109/8.56992
  3. R. Sorrentino, A. Alessandri, M Mgiardo, G Aviatabile, and L Roselli, "Full-Wave Modeling of Via Hole Grounds in Microstrip by Three-Dimensional Mode Matching Technique", IEEE Trans. Microwave Theory and Technique, vol. 40, no. 12, pp. 2228-2234, Dec. 1992. https://doi.org/10.1109/22.179884
  4. J. A. Ruia-Cruz, K. A.Zaki, and J. M. Rebollar, "Mode Matching Analysis of a Coaxial to Stripline Discontinuity Applied to the Modeling of a Coaxial Probe", in Proceedings of IEEE Antenna and Propagation Symposium, vol. 2, pp. 2139-242, 2004.
  5. Dong H. Kim and Hyo J. Eom "Mode Matching Analysis of Axially Slotted Coaxial Cable", IEEE Trans. Antennas and Wireless Propagation Letters, vol. 4, pp. 169-171, 2005. https://doi.org/10.1109/LAWP.2005.848384
  6. X. Q. li, Q. X. Liu, J. Q. Zhang and L. Zhao, "Mode Matching Analysis of Metallic Plates in Radial Waveguide," in Proceedings of International Conference on Microwave and Millimeter Wave Technology, pp. 1969-1971, 2010.
  7. T. E. O'Clardha and B. N. Lyons, "Modal Analysis of Coaxial Structures," Microwave and Optical Technology, vol. 5, no. 6, pp. 292-294, June 1992 https://doi.org/10.1002/mop.4650050615
  8. A. P. Orfanidis, G. A. Kyriacout, and J. N. Sahalos, "A Mode Matching Technique for the Study of Circular and Coaxial Waveguide Discontinuities Based on Closed-Form Coupling Integrals," IEEE Trans. Microwave Theory and Technique, vol. 48, no. 5, pp. 880-883, May 2000 https://doi.org/10.1109/22.841894
  9. A. Argan, L. Palumbo, M. R. Masullo, and V. G. Vaccaro, "On the Sands and Rees measurement method of the longitudinal coupling impedance," in Proceedings of the 1999 Particle Accelerator Conference, vol. 3, pp.1599-1601, 1999
  10. H. Gang, H Wenhui, T. Dechun, and Z. Zhentag, "Longitudinal Broadband Impedance Measurement System by Coaxial Line Methods," in Proceedings of the 2001 Particle Accelerator Conference, vol. 3, pp. 2060-2062, 2001
  11. http://www.cst.com/products/cstmws