Generalized Coupling Coefficient for Filters With Nonresonant Nodes

@article{Macchiarella2008GeneralizedCC,
  title={Generalized Coupling Coefficient for Filters With Nonresonant Nodes},
  author={Giuseppe Macchiarella},
  journal={IEEE Microwave and Wireless Components Letters},
  year={2008},
  volume={18},
  pages={773-775}
}
In this letter, we introduce a generalization of the coupling coefficient definition that applies to filters, including nonresonating nodes. The novel coefficients are evaluated from the synthesized low-pass prototype (suitable formulas are given); they allow an easier prototype de-normalization because no complicated network transformation is requested. Several different solutions with preassigned network parameters can be easily obtained by exploiting the degree of freedom offered by the de… CONTINUE READING
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