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In this paper, a new compact bandpass microstrip filter based on grounded patch resonators is proposed. The coupling model of the filter is established and the coupling coefficients of coupled pair of resonators and the external quality factors of basic feeding configuration are investigated using full-wave electromagnetic simulations. As an example, a third order direct-coupled Chebyshev filter that...
In this paper, a new cross-coupled microstrip filter based on the grounded patch resonators is designed, fabricated and measured. Coupling characteristics of three basic coupling structures encountered in this class of filters are investigated using full-wave electromagnetic simulations, and the design curves for coupling coefficients and the external quality factor are presented. As the demonstration,...
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