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Bulletin of Materials Science

, Volume 29, Issue 2, pp 181–185 | Cite as

Dielectric measurements on PWB materials at microwave frequencies

  • A. Tanwar
  • K. K. Gupta
  • P. J. Singh
  • Y. K. Vijay
Electrical Properties

Abstract

In quest of finding new substrate for printed wiring board (PWB) having low dielectric constant, we have made PSF/PMMA blends and evaluated the dielectric parameters at 8.92 GHz frequency and at 35°C temperature. Incorporating PMMA in PSF matrix results in reduced dielectric constant than that of pure PSF. The dielectric parameters of pure PMMA and PSF films of different thicknesses have also been obtained at microwave frequencies. We have used dielectric data at microwave frequencies as a tool to evaluate optical constants, absorption index ‘K’ and refractive index ‘n’. The blends of PSF/PMMA may be used as base materials for PWBs.

Keywords

Dielectric constant PWB dielectric loss absorption index 

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Copyright information

© Indian Academy of Sciences 2006

Authors and Affiliations

  • A. Tanwar
    • 1
  • K. K. Gupta
    • 1
  • P. J. Singh
    • 1
  • Y. K. Vijay
    • 1
    • 2
  1. 1.Department of PhysicsM.S.J. CollegeBharatpurIndia
  2. 2.Department of PhysicsUniversity of RajasthanJaipurIndia

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