Parallel-coupled Stub-loaded Resonator filters with wide spurious suppression

  title={Parallel-coupled Stub-loaded Resonator filters with wide spurious suppression},
  author={Minra Akra and Hamza Issa and Emmanuel Pistono and Akil Jrad and N. Corrao and Philippe Ferrari},
  journal={2012 7th European Microwave Integrated Circuit Conference},
A compact bandpass filter with a large rejection band is designed using short-circuited Stub-loaded Resonators (SLRs). The fundamental resonance frequency and higher order resonant harmonics of the considered SLR are established. It is found that the first spurious resonance frequency can be conveniently controlled. For a proof-of-concept, a three-pole filter designed at 1 GHz, with a 6% fractional bandwidth is fabricated and measured. A measured 2.3-dB insertion loss is achieved, with a first… CONTINUE READING
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