ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
권호 표지

Analysis and Optimization of Passive intermodulation in Microwave Coaxial Cavity Filters

  • Received : 2001.11.15
  • Published : 2003.04.30
Download PDF
⟨ Previous Next ⟩

Abstract

We studied how the passive intermodulation (PIM) power arising in air cavity filters could be calculated and how the design of the filter could be optimized in order to reduce the amplitude of the PIM signal. To do this, using simulated results, we optimized the various parameters of a filter. PIM in an air cavity filter depends on the power dissipated in its cavities. A reduction of this power loss therefore decreases the PIM power in the air cavity filter. Our experimental results confirm that it is possible to design and produce air cavity filters that generate low PIM signals.

Keywords

References

  1. Passive Intermodulation of ICT Components Helme, B.G.M.
  2. ETRI J. v.24 no.3 Millimeter Wave MMIC Low Noise Amplifiers Using a $0.15 {\mu}m$ Commercial pHEMT Process Jang, Byung-Jun;Yom, In-Bok;Lee, Seong-Pal
  3. IEEE Proc. of Aerospace Applications Conf. v.3 Minimizing Passive Intermodulation Product Generation in High Power Satellites Schennum, G.H.;Rosati, G.
  4. ETRI J. v.24 no.6 Effect of External PIM Sources on Antenna PIM Measurements Kim, Jin-Tae;Cho, In-Kui;Jeong, Myung-Yung;Choy, Tae-Goo
  5. IEEE Antennas and Propagation Magazine v.44 Passive Intermodulation on Large Reflector Antennas Bolli, P.;Selleri, S.;Pelosi, G.
  6. IEEE Trans. on Electromagnetic Compatibility v.EMC-22 no.3 Nonlinearities in Metal Contacts at Microwave Frequencies Arazm, F.;Benson, F.A.
  7. Microwave & RF Measuring the Passive-IM Performance of RF Cable Assemblies Deats, B.;Hartman, R.
  8. IEEE Trans. on Communications Thermal Heating Contribution to Intermodulation Fields in Coaxial Waveguides Wilcox, J.Z.;Molmud, P.
  9. Microwave Filters, Impedance Matching Networks and Coupling Structures Matthaei, G.L.;Young, L.;Jones, E.M.
  10. ETRI J. v.19 no.2 Temperature Dependence of Microwave Properties of HTS Multipole Lowpass Filters Consisting of Microstrip Open-Stub Lines Kim, J.H.;Han, S.K.;Kang, K.Y.;Ahn, D.
  11. Intrinsic Sources of IM Generation, NRL Memorandum Report 4233 Stauss, G.H.
  12. IEEE Trans. on Microwave Theory and Techniques v.43 no.12 High-Power HTS Microstrip Filters for Wireless Communication Liang, G.C.;Zhang, D.;Shih, C.F.