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COUPLING COEFFICIENTS OF RESONATORS IN MICROWAVE FILTER THEORYBy V. V. TyurnevAbstract: This paper is an overview of important concepts and formulas involved in the application of coupling coefficients of microwave resonators for the design of bandpass filters with a particular emphasis on the frequency dispersion of coupling coefficients. The presumptions and formulas are classified into accurate, approximate, and erroneous ones.
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