A temperature-stable bandpass filter using dielectric resonators

Authors:
  • RPR.A. Pucel
    R.A. Pucel
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Abstract
A microstrip bandpass filter has been built with dielectric resonators made of a temperature-compensated material. Its unloaded Q at X band is calculated to be greater than 1200, a four-fold improvement upon conventional printed-on devices. With additional temperature compensation, a temperature coefficient less than 5 ppm/°C is shown to be feasible.